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Finding the Fourth Proportional to 38,892.99, 53,658.28 and 25,471.90

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Solution

The fourth proportional to 38,892.99, 53,658.28 and 25,471.90 is: 35,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,892.99 : 53,658.28 = 25,471.90 : x
  2. Step 2: Convert to fraction form
    38,892.99/53,658.28 = 25,471.90/x
  3. Step 3: Cross multiply
    38,892.99x = 53,658.28 × 25,471.90
  4. Step 4: Simplify right side
    38,892.99x = 1,366,778,441.24
  5. Step 5: Solve for x
    x = 1,366,778,441.24/38,892.99
  6. Step 6: Final answer
    x = 35,142.02

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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.