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Finding the Fourth Proportional to 8,310,709.60, 12,466,064.40 and 7,414,914.40

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Solution

The fourth proportional to 8,310,709.60, 12,466,064.40 and 7,414,914.40 is: 11,122,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310,709.60 : 12,466,064.40 = 7,414,914.40 : x
  2. Step 2: Convert to fraction form
    8,310,709.60/12,466,064.40 = 7,414,914.40/x
  3. Step 3: Cross multiply
    8,310,709.60x = 12,466,064.40 × 7,414,914.40
  4. Step 4: Simplify right side
    8,310,709.60x = 92,434,800,430,887.38
  5. Step 5: Solve for x
    x = 92,434,800,430,887.38/8,310,709.60
  6. Step 6: Final answer
    x = 11,122,371.60

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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.