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Finding the Fourth Proportional to 63,036.77, 86,990.76 and 34,356.44

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Solution

The fourth proportional to 63,036.77, 86,990.76 and 34,356.44 is: 47,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,036.77 : 86,990.76 = 34,356.44 : x
  2. Step 2: Convert to fraction form
    63,036.77/86,990.76 = 34,356.44/x
  3. Step 3: Cross multiply
    63,036.77x = 86,990.76 × 34,356.44
  4. Step 4: Simplify right side
    63,036.77x = 2,988,692,391.54
  5. Step 5: Solve for x
    x = 2,988,692,391.54/63,036.77
  6. Step 6: Final answer
    x = 47,411.89

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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.