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Finding the Fourth Proportional to 38,706.08, 58,064.87 and 13,744.04

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Solution

The fourth proportional to 38,706.08, 58,064.87 and 13,744.04 is: 20,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.08 : 58,064.87 = 13,744.04 : x
  2. Step 2: Convert to fraction form
    38,706.08/58,064.87 = 13,744.04/x
  3. Step 3: Cross multiply
    38,706.08x = 58,064.87 × 13,744.04
  4. Step 4: Simplify right side
    38,706.08x = 798,045,639.91
  5. Step 5: Solve for x
    x = 798,045,639.91/38,706.08
  6. Step 6: Final answer
    x = 20,618.10

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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.