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Finding the Fourth Proportional to 63,013.97, 86,959.55 and 34,719.66

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Solution

The fourth proportional to 63,013.97, 86,959.55 and 34,719.66 is: 47,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,013.97 : 86,959.55 = 34,719.66 : x
  2. Step 2: Convert to fraction form
    63,013.97/86,959.55 = 34,719.66/x
  3. Step 3: Cross multiply
    63,013.97x = 86,959.55 × 34,719.66
  4. Step 4: Simplify right side
    63,013.97x = 3,019,206,009.75
  5. Step 5: Solve for x
    x = 3,019,206,009.75/63,013.97
  6. Step 6: Final answer
    x = 47,913.28

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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.