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Finding the Fourth Proportional to 29,294.01, 40,425.73 and 15,865.29

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Solution

The fourth proportional to 29,294.01, 40,425.73 and 15,865.29 is: 21,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,294.01 : 40,425.73 = 15,865.29 : x
  2. Step 2: Convert to fraction form
    29,294.01/40,425.73 = 15,865.29/x
  3. Step 3: Cross multiply
    29,294.01x = 40,425.73 × 15,865.29
  4. Step 4: Simplify right side
    29,294.01x = 641,365,890.25
  5. Step 5: Solve for x
    x = 641,365,890.25/29,294.01
  6. Step 6: Final answer
    x = 21,894.10

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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.