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Finding the Fourth Proportional to 16,650.60, 22,981.68 and 9,581.12

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Solution

The fourth proportional to 16,650.60, 22,981.68 and 9,581.12 is: 13,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,650.60 : 22,981.68 = 9,581.12 : x
  2. Step 2: Convert to fraction form
    16,650.60/22,981.68 = 9,581.12/x
  3. Step 3: Cross multiply
    16,650.60x = 22,981.68 × 9,581.12
  4. Step 4: Simplify right side
    16,650.60x = 220,190,233.88
  5. Step 5: Solve for x
    x = 220,190,233.88/16,650.60
  6. Step 6: Final answer
    x = 13,224.16

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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.