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Finding the Fourth Proportional to 31,487.60, 43,452.60 and 17,340.14

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Solution

The fourth proportional to 31,487.60, 43,452.60 and 17,340.14 is: 23,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.60 : 43,452.60 = 17,340.14 : x
  2. Step 2: Convert to fraction form
    31,487.60/43,452.60 = 17,340.14/x
  3. Step 3: Cross multiply
    31,487.60x = 43,452.60 × 17,340.14
  4. Step 4: Simplify right side
    31,487.60x = 753,474,167.36
  5. Step 5: Solve for x
    x = 753,474,167.36/31,487.60
  6. Step 6: Final answer
    x = 23,929.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.