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Finding the Fourth Proportional to 60,613.47, 90,933.96 and 18,497.31

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Solution

The fourth proportional to 60,613.47, 90,933.96 and 18,497.31 is: 27,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,613.47 : 90,933.96 = 18,497.31 : x
  2. Step 2: Convert to fraction form
    60,613.47/90,933.96 = 18,497.31/x
  3. Step 3: Cross multiply
    60,613.47x = 90,933.96 × 18,497.31
  4. Step 4: Simplify right side
    60,613.47x = 1,682,033,647.65
  5. Step 5: Solve for x
    x = 1,682,033,647.65/60,613.47
  6. Step 6: Final answer
    x = 27,750.16

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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.