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Finding the Fourth Proportional to 22,342.46, 30,788.08 and 15,951.02

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Solution

The fourth proportional to 22,342.46, 30,788.08 and 15,951.02 is: 21,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,342.46 : 30,788.08 = 15,951.02 : x
  2. Step 2: Convert to fraction form
    22,342.46/30,788.08 = 15,951.02/x
  3. Step 3: Cross multiply
    22,342.46x = 30,788.08 × 15,951.02
  4. Step 4: Simplify right side
    22,342.46x = 491,101,279.84
  5. Step 5: Solve for x
    x = 491,101,279.84/22,342.46
  6. Step 6: Final answer
    x = 21,980.63

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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.