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Finding the Fourth Proportional to 23,322.60, 34,983.90 and 20,916.90

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Solution

The fourth proportional to 23,322.60, 34,983.90 and 20,916.90 is: 31,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,322.60 : 34,983.90 = 20,916.90 : x
  2. Step 2: Convert to fraction form
    23,322.60/34,983.90 = 20,916.90/x
  3. Step 3: Cross multiply
    23,322.60x = 34,983.90 × 20,916.90
  4. Step 4: Simplify right side
    23,322.60x = 731,754,737.91
  5. Step 5: Solve for x
    x = 731,754,737.91/23,322.60
  6. Step 6: Final answer
    x = 31,375.35

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1.5x scale

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.