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Finding the Fourth Proportional to 22,612.65, 31,205.16 and 12,541.11

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Solution

The fourth proportional to 22,612.65, 31,205.16 and 12,541.11 is: 17,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.65 : 31,205.16 = 12,541.11 : x
  2. Step 2: Convert to fraction form
    22,612.65/31,205.16 = 12,541.11/x
  3. Step 3: Cross multiply
    22,612.65x = 31,205.16 × 12,541.11
  4. Step 4: Simplify right side
    22,612.65x = 391,347,344.13
  5. Step 5: Solve for x
    x = 391,347,344.13/22,612.65
  6. Step 6: Final answer
    x = 17,306.57

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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.