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Finding the Fourth Proportional to 62,854.58, 86,740.79 and 34,175.87

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Solution

The fourth proportional to 62,854.58, 86,740.79 and 34,175.87 is: 47,163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,854.58 : 86,740.79 = 34,175.87 : x
  2. Step 2: Convert to fraction form
    62,854.58/86,740.79 = 34,175.87/x
  3. Step 3: Cross multiply
    62,854.58x = 86,740.79 × 34,175.87
  4. Step 4: Simplify right side
    62,854.58x = 2,964,441,962.74
  5. Step 5: Solve for x
    x = 2,964,441,962.74/62,854.58
  6. Step 6: Final answer
    x = 47,163.50

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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.