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Finding the Fourth Proportional to 62,860.71, 86,744.16 and 34,566.42

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Solution

The fourth proportional to 62,860.71, 86,744.16 and 34,566.42 is: 47,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,860.71 : 86,744.16 = 34,566.42 : x
  2. Step 2: Convert to fraction form
    62,860.71/86,744.16 = 34,566.42/x
  3. Step 3: Cross multiply
    62,860.71x = 86,744.16 × 34,566.42
  4. Step 4: Simplify right side
    62,860.71x = 2,998,435,067.11
  5. Step 5: Solve for x
    x = 2,998,435,067.11/62,860.71
  6. Step 6: Final answer
    x = 47,699.67

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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.