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Finding the Fourth Proportional to 65,343.74, 98,003.88 and 17,312.66

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Solution

The fourth proportional to 65,343.74, 98,003.88 and 17,312.66 is: 25,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.74 : 98,003.88 = 17,312.66 : x
  2. Step 2: Convert to fraction form
    65,343.74/98,003.88 = 17,312.66/x
  3. Step 3: Cross multiply
    65,343.74x = 98,003.88 × 17,312.66
  4. Step 4: Simplify right side
    65,343.74x = 1,696,707,363.10
  5. Step 5: Solve for x
    x = 1,696,707,363.10/65,343.74
  6. Step 6: Final answer
    x = 25,965.88

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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.