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Finding the Fourth Proportional to 65,644.56, 98,498.97 and 40,677.93

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Solution

The fourth proportional to 65,644.56, 98,498.97 and 40,677.93 is: 61,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,644.56 : 98,498.97 = 40,677.93 : x
  2. Step 2: Convert to fraction form
    65,644.56/98,498.97 = 40,677.93/x
  3. Step 3: Cross multiply
    65,644.56x = 98,498.97 × 40,677.93
  4. Step 4: Simplify right side
    65,644.56x = 4,006,734,206.73
  5. Step 5: Solve for x
    x = 4,006,734,206.73/65,644.56
  6. Step 6: Final answer
    x = 61,036.80

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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.