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Finding the Fourth Proportional to 22,048.76, 30,425.18 and 12,489.08

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Solution

The fourth proportional to 22,048.76, 30,425.18 and 12,489.08 is: 17,233.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,048.76 : 30,425.18 = 12,489.08 : x
  2. Step 2: Convert to fraction form
    22,048.76/30,425.18 = 12,489.08/x
  3. Step 3: Cross multiply
    22,048.76x = 30,425.18 × 12,489.08
  4. Step 4: Simplify right side
    22,048.76x = 379,982,507.03
  5. Step 5: Solve for x
    x = 379,982,507.03/22,048.76
  6. Step 6: Final answer
    x = 17,233.74

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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.