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Finding the Fourth Proportional to 61,406.34, 84,727.92 and 35,907.72

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Solution

The fourth proportional to 61,406.34, 84,727.92 and 35,907.72 is: 49,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,406.34 : 84,727.92 = 35,907.72 : x
  2. Step 2: Convert to fraction form
    61,406.34/84,727.92 = 35,907.72/x
  3. Step 3: Cross multiply
    61,406.34x = 84,727.92 × 35,907.72
  4. Step 4: Simplify right side
    61,406.34x = 3,042,386,427.54
  5. Step 5: Solve for x
    x = 3,042,386,427.54/61,406.34
  6. Step 6: Final answer
    x = 49,545.15

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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.