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Finding the Fourth Proportional to 62,651.76, 86,460.66 and 34,359

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Solution

The fourth proportional to 62,651.76, 86,460.66 and 34,359 is: 47,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,651.76 : 86,460.66 = 34,359 : x
  2. Step 2: Convert to fraction form
    62,651.76/86,460.66 = 34,359/x
  3. Step 3: Cross multiply
    62,651.76x = 86,460.66 × 34,359
  4. Step 4: Simplify right side
    62,651.76x = 2,970,701,816.94
  5. Step 5: Solve for x
    x = 2,970,701,816.94/62,651.76
  6. Step 6: Final answer
    x = 47,416.10

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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.