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Finding the Fourth Proportional to 37,248.12, 55,872.90 and 13,869.90

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Solution

The fourth proportional to 37,248.12, 55,872.90 and 13,869.90 is: 20,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,248.12 : 55,872.90 = 13,869.90 : x
  2. Step 2: Convert to fraction form
    37,248.12/55,872.90 = 13,869.90/x
  3. Step 3: Cross multiply
    37,248.12x = 55,872.90 × 13,869.90
  4. Step 4: Simplify right side
    37,248.12x = 774,951,535.71
  5. Step 5: Solve for x
    x = 774,951,535.71/37,248.12
  6. Step 6: Final answer
    x = 20,805.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.