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Finding the Fourth Proportional to 61,422.57, 84,720.74 and 37,560.98

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Solution

The fourth proportional to 61,422.57, 84,720.74 and 37,560.98 is: 51,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,422.57 : 84,720.74 = 37,560.98 : x
  2. Step 2: Convert to fraction form
    61,422.57/84,720.74 = 37,560.98/x
  3. Step 3: Cross multiply
    61,422.57x = 84,720.74 × 37,560.98
  4. Step 4: Simplify right side
    61,422.57x = 3,182,194,044.72
  5. Step 5: Solve for x
    x = 3,182,194,044.72/61,422.57
  6. Step 6: Final answer
    x = 51,808.22

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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.