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Finding the Fourth Proportional to 29,652.50, 40,930.17 and 21,293.30

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Solution

The fourth proportional to 29,652.50, 40,930.17 and 21,293.30 is: 29,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,652.50 : 40,930.17 = 21,293.30 : x
  2. Step 2: Convert to fraction form
    29,652.50/40,930.17 = 21,293.30/x
  3. Step 3: Cross multiply
    29,652.50x = 40,930.17 × 21,293.30
  4. Step 4: Simplify right side
    29,652.50x = 871,538,388.86
  5. Step 5: Solve for x
    x = 871,538,388.86/29,652.50
  6. Step 6: Final answer
    x = 29,391.73

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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.