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Finding the Fourth Proportional to 62,646.34, 86,449.66 and 34,351.42

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Solution

The fourth proportional to 62,646.34, 86,449.66 and 34,351.42 is: 47,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,646.34 : 86,449.66 = 34,351.42 : x
  2. Step 2: Convert to fraction form
    62,646.34/86,449.66 = 34,351.42/x
  3. Step 3: Cross multiply
    62,646.34x = 86,449.66 × 34,351.42
  4. Step 4: Simplify right side
    62,646.34x = 2,969,668,579.52
  5. Step 5: Solve for x
    x = 2,969,668,579.52/62,646.34
  6. Step 6: Final answer
    x = 47,403.70

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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.