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Finding the Fourth Proportional to 65,860.80, 98,718.72 and 32,531.52

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Solution

The fourth proportional to 65,860.80, 98,718.72 and 32,531.52 is: 48,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,860.80 : 98,718.72 = 32,531.52 : x
  2. Step 2: Convert to fraction form
    65,860.80/98,718.72 = 32,531.52/x
  3. Step 3: Cross multiply
    65,860.80x = 98,718.72 × 32,531.52
  4. Step 4: Simplify right side
    65,860.80x = 3,211,470,014.05
  5. Step 5: Solve for x
    x = 3,211,470,014.05/65,860.80
  6. Step 6: Final answer
    x = 48,761.48

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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.