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Finding the Fourth Proportional to 16,372.13, 22,593.53 and 8,920.13

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Solution

The fourth proportional to 16,372.13, 22,593.53 and 8,920.13 is: 12,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,372.13 : 22,593.53 = 8,920.13 : x
  2. Step 2: Convert to fraction form
    16,372.13/22,593.53 = 8,920.13/x
  3. Step 3: Cross multiply
    16,372.13x = 22,593.53 × 8,920.13
  4. Step 4: Simplify right side
    16,372.13x = 201,537,134.09
  5. Step 5: Solve for x
    x = 201,537,134.09/16,372.13
  6. Step 6: Final answer
    x = 12,309.77

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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.