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Finding the Fourth Proportional to 61,959.47, 85,483.87 and 36,112.12

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Solution

The fourth proportional to 61,959.47, 85,483.87 and 36,112.12 is: 49,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,959.47 : 85,483.87 = 36,112.12 : x
  2. Step 2: Convert to fraction form
    61,959.47/85,483.87 = 36,112.12/x
  3. Step 3: Cross multiply
    61,959.47x = 85,483.87 × 36,112.12
  4. Step 4: Simplify right side
    61,959.47x = 3,087,003,442.65
  5. Step 5: Solve for x
    x = 3,087,003,442.65/61,959.47
  6. Step 6: Final answer
    x = 49,822.95

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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.