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Finding the Fourth Proportional to 38,342.92, 52,913.19 and 21,575.92

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Solution

The fourth proportional to 38,342.92, 52,913.19 and 21,575.92 is: 29,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,342.92 : 52,913.19 = 21,575.92 : x
  2. Step 2: Convert to fraction form
    38,342.92/52,913.19 = 21,575.92/x
  3. Step 3: Cross multiply
    38,342.92x = 52,913.19 × 21,575.92
  4. Step 4: Simplify right side
    38,342.92x = 1,141,650,754.38
  5. Step 5: Solve for x
    x = 1,141,650,754.38/38,342.92
  6. Step 6: Final answer
    x = 29,774.75

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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.