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Finding the Fourth Proportional to 38,903.68, 53,691.42 and 22,992.04

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Solution

The fourth proportional to 38,903.68, 53,691.42 and 22,992.04 is: 31,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903.68 : 53,691.42 = 22,992.04 : x
  2. Step 2: Convert to fraction form
    38,903.68/53,691.42 = 22,992.04/x
  3. Step 3: Cross multiply
    38,903.68x = 53,691.42 × 22,992.04
  4. Step 4: Simplify right side
    38,903.68x = 1,234,475,276.30
  5. Step 5: Solve for x
    x = 1,234,475,276.30/38,903.68
  6. Step 6: Final answer
    x = 31,731.58

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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.