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Finding the Fourth Proportional to 18,368.70, 25,327.17 and 17,006.87

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Solution

The fourth proportional to 18,368.70, 25,327.17 and 17,006.87 is: 23,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.70 : 25,327.17 = 17,006.87 : x
  2. Step 2: Convert to fraction form
    18,368.70/25,327.17 = 17,006.87/x
  3. Step 3: Cross multiply
    18,368.70x = 25,327.17 × 17,006.87
  4. Step 4: Simplify right side
    18,368.70x = 430,735,761.02
  5. Step 5: Solve for x
    x = 430,735,761.02/18,368.70
  6. Step 6: Final answer
    x = 23,449.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.