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Finding the Fourth Proportional to 62,788.74, 86,648.43 and 34,494.42

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Solution

The fourth proportional to 62,788.74, 86,648.43 and 34,494.42 is: 47,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,788.74 : 86,648.43 = 34,494.42 : x
  2. Step 2: Convert to fraction form
    62,788.74/86,648.43 = 34,494.42/x
  3. Step 3: Cross multiply
    62,788.74x = 86,648.43 × 34,494.42
  4. Step 4: Simplify right side
    62,788.74x = 2,988,887,336.76
  5. Step 5: Solve for x
    x = 2,988,887,336.76/62,788.74
  6. Step 6: Final answer
    x = 47,602.28

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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.