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Finding the Fourth Proportional to 38,665.48, 57,998.48 and 13,706.16

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Solution

The fourth proportional to 38,665.48, 57,998.48 and 13,706.16 is: 20,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.48 : 57,998.48 = 13,706.16 : x
  2. Step 2: Convert to fraction form
    38,665.48/57,998.48 = 13,706.16/x
  3. Step 3: Cross multiply
    38,665.48x = 57,998.48 × 13,706.16
  4. Step 4: Simplify right side
    38,665.48x = 794,936,446.64
  5. Step 5: Solve for x
    x = 794,936,446.64/38,665.48
  6. Step 6: Final answer
    x = 20,559.33

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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.