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Finding the Fourth Proportional to 8,808,607.20, 13,212,910.80 and 7,464,914.40

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Solution

The fourth proportional to 8,808,607.20, 13,212,910.80 and 7,464,914.40 is: 11,197,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808,607.20 : 13,212,910.80 = 7,464,914.40 : x
  2. Step 2: Convert to fraction form
    8,808,607.20/13,212,910.80 = 7,464,914.40/x
  3. Step 3: Cross multiply
    8,808,607.20x = 13,212,910.80 × 7,464,914.40
  4. Step 4: Simplify right side
    8,808,607.20x = 98,633,248,096,835.53
  5. Step 5: Solve for x
    x = 98,633,248,096,835.53/8,808,607.20
  6. Step 6: Final answer
    x = 11,197,371.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.