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Finding the Fourth Proportional to 65,732.61, 98,626.11 and 31,521.05

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Solution

The fourth proportional to 65,732.61, 98,626.11 and 31,521.05 is: 47,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,732.61 : 98,626.11 = 31,521.05 : x
  2. Step 2: Convert to fraction form
    65,732.61/98,626.11 = 31,521.05/x
  3. Step 3: Cross multiply
    65,732.61x = 98,626.11 × 31,521.05
  4. Step 4: Simplify right side
    65,732.61x = 3,108,798,303.13
  5. Step 5: Solve for x
    x = 3,108,798,303.13/65,732.61
  6. Step 6: Final answer
    x = 47,294.61

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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.