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Finding the Fourth Proportional to 66,471.55, 99,678.14 and 24,889.39

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Solution

The fourth proportional to 66,471.55, 99,678.14 and 24,889.39 is: 37,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,471.55 : 99,678.14 = 24,889.39 : x
  2. Step 2: Convert to fraction form
    66,471.55/99,678.14 = 24,889.39/x
  3. Step 3: Cross multiply
    66,471.55x = 99,678.14 × 24,889.39
  4. Step 4: Simplify right side
    66,471.55x = 2,480,927,976.49
  5. Step 5: Solve for x
    x = 2,480,927,976.49/66,471.55
  6. Step 6: Final answer
    x = 37,323.16

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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.