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Finding the Fourth Proportional to 38,701.94, 58,061.12 and 12,425.14

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Solution

The fourth proportional to 38,701.94, 58,061.12 and 12,425.14 is: 18,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701.94 : 58,061.12 = 12,425.14 : x
  2. Step 2: Convert to fraction form
    38,701.94/58,061.12 = 12,425.14/x
  3. Step 3: Cross multiply
    38,701.94x = 58,061.12 × 12,425.14
  4. Step 4: Simplify right side
    38,701.94x = 721,417,544.56
  5. Step 5: Solve for x
    x = 721,417,544.56/38,701.94
  6. Step 6: Final answer
    x = 18,640.35

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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.