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Finding the Fourth Proportional to 22,601.16, 31,189.19 and 12,392.19

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Solution

The fourth proportional to 22,601.16, 31,189.19 and 12,392.19 is: 17,100.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,601.16 : 31,189.19 = 12,392.19 : x
  2. Step 2: Convert to fraction form
    22,601.16/31,189.19 = 12,392.19/x
  3. Step 3: Cross multiply
    22,601.16x = 31,189.19 × 12,392.19
  4. Step 4: Simplify right side
    22,601.16x = 386,502,306.47
  5. Step 5: Solve for x
    x = 386,502,306.47/22,601.16
  6. Step 6: Final answer
    x = 17,100.99

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Double scale
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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.