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Finding the Fourth Proportional to 23,663.60, 35,500.80 and 8,081

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Solution

The fourth proportional to 23,663.60, 35,500.80 and 8,081 is: 12,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,663.60 : 35,500.80 = 8,081 : x
  2. Step 2: Convert to fraction form
    23,663.60/35,500.80 = 8,081/x
  3. Step 3: Cross multiply
    23,663.60x = 35,500.80 × 8,081
  4. Step 4: Simplify right side
    23,663.60x = 286,881,964.80
  5. Step 5: Solve for x
    x = 286,881,964.80/23,663.60
  6. Step 6: Final answer
    x = 12,123.34

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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.