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Finding the Fourth Proportional to 9,709.60, 14,564.40 and 6,599.20

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Solution

The fourth proportional to 9,709.60, 14,564.40 and 6,599.20 is: 9,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,709.60 : 14,564.40 = 6,599.20 : x
  2. Step 2: Convert to fraction form
    9,709.60/14,564.40 = 6,599.20/x
  3. Step 3: Cross multiply
    9,709.60x = 14,564.40 × 6,599.20
  4. Step 4: Simplify right side
    9,709.60x = 96,113,388.48
  5. Step 5: Solve for x
    x = 96,113,388.48/9,709.60
  6. Step 6: Final answer
    x = 9,898.80

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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.