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Finding the Fourth Proportional to 62,750, 86,590.68 and 34,449.84

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Solution

The fourth proportional to 62,750, 86,590.68 and 34,449.84 is: 47,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,750 : 86,590.68 = 34,449.84 : x
  2. Step 2: Convert to fraction form
    62,750/86,590.68 = 34,449.84/x
  3. Step 3: Cross multiply
    62,750x = 86,590.68 × 34,449.84
  4. Step 4: Simplify right side
    62,750x = 2,983,035,071.49
  5. Step 5: Solve for x
    x = 2,983,035,071.49/62,750
  6. Step 6: Final answer
    x = 47,538.41

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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.