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Finding the Fourth Proportional to 65,518.92, 98,294.94 and 28,060.20

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Solution

The fourth proportional to 65,518.92, 98,294.94 and 28,060.20 is: 42,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,518.92 : 98,294.94 = 28,060.20 : x
  2. Step 2: Convert to fraction form
    65,518.92/98,294.94 = 28,060.20/x
  3. Step 3: Cross multiply
    65,518.92x = 98,294.94 × 28,060.20
  4. Step 4: Simplify right side
    65,518.92x = 2,758,175,675.39
  5. Step 5: Solve for x
    x = 2,758,175,675.39/65,518.92
  6. Step 6: Final answer
    x = 42,097.39

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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.