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Finding the Fourth Proportional to 65,494.71, 98,159.85 and 28,010.70

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Solution

The fourth proportional to 65,494.71, 98,159.85 and 28,010.70 is: 41,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,494.71 : 98,159.85 = 28,010.70 : x
  2. Step 2: Convert to fraction form
    65,494.71/98,159.85 = 28,010.70/x
  3. Step 3: Cross multiply
    65,494.71x = 98,159.85 × 28,010.70
  4. Step 4: Simplify right side
    65,494.71x = 2,749,526,504.64
  5. Step 5: Solve for x
    x = 2,749,526,504.64/65,494.71
  6. Step 6: Final answer
    x = 41,980.90

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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.