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Finding the Fourth Proportional to 65,591.65, 98,388.06 and 18,844.51

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Solution

The fourth proportional to 65,591.65, 98,388.06 and 18,844.51 is: 28,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,591.65 : 98,388.06 = 18,844.51 : x
  2. Step 2: Convert to fraction form
    65,591.65/98,388.06 = 18,844.51/x
  3. Step 3: Cross multiply
    65,591.65x = 98,388.06 × 18,844.51
  4. Step 4: Simplify right side
    65,591.65x = 1,854,074,780.55
  5. Step 5: Solve for x
    x = 1,854,074,780.55/65,591.65
  6. Step 6: Final answer
    x = 28,266.93

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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.