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Finding the Fourth Proportional to 61,521.88, 92,382.94 and 37,979.08

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Solution

The fourth proportional to 61,521.88, 92,382.94 and 37,979.08 is: 57,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.88 : 92,382.94 = 37,979.08 : x
  2. Step 2: Convert to fraction form
    61,521.88/92,382.94 = 37,979.08/x
  3. Step 3: Cross multiply
    61,521.88x = 92,382.94 × 37,979.08
  4. Step 4: Simplify right side
    61,521.88x = 3,508,619,419.90
  5. Step 5: Solve for x
    x = 3,508,619,419.90/61,521.88
  6. Step 6: Final answer
    x = 57,030.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.