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Finding the Fourth Proportional to 23,553.39, 32,503.86 and 12,943.20

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Solution

The fourth proportional to 23,553.39, 32,503.86 and 12,943.20 is: 17,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,553.39 : 32,503.86 = 12,943.20 : x
  2. Step 2: Convert to fraction form
    23,553.39/32,503.86 = 12,943.20/x
  3. Step 3: Cross multiply
    23,553.39x = 32,503.86 × 12,943.20
  4. Step 4: Simplify right side
    23,553.39x = 420,703,960.75
  5. Step 5: Solve for x
    x = 420,703,960.75/23,553.39
  6. Step 6: Final answer
    x = 17,861.72

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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.