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Finding the Fourth Proportional to 18,052.80, 24,915.72 and 10,981.44

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Solution

The fourth proportional to 18,052.80, 24,915.72 and 10,981.44 is: 15,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,052.80 : 24,915.72 = 10,981.44 : x
  2. Step 2: Convert to fraction form
    18,052.80/24,915.72 = 10,981.44/x
  3. Step 3: Cross multiply
    18,052.80x = 24,915.72 × 10,981.44
  4. Step 4: Simplify right side
    18,052.80x = 273,610,484.24
  5. Step 5: Solve for x
    x = 273,610,484.24/18,052.80
  6. Step 6: Final answer
    x = 15,156.12

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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.