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Finding the Fourth Proportional to 62,412.84, 86,174.82 and 38,572.20

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Solution

The fourth proportional to 62,412.84, 86,174.82 and 38,572.20 is: 53,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,412.84 : 86,174.82 = 38,572.20 : x
  2. Step 2: Convert to fraction form
    62,412.84/86,174.82 = 38,572.20/x
  3. Step 3: Cross multiply
    62,412.84x = 86,174.82 × 38,572.20
  4. Step 4: Simplify right side
    62,412.84x = 3,323,952,392.00
  5. Step 5: Solve for x
    x = 3,323,952,392.00/62,412.84
  6. Step 6: Final answer
    x = 53,257.51

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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.