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Finding the Fourth Proportional to 37,921.80, 56,915.10 and 16,894.20

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Solution

The fourth proportional to 37,921.80, 56,915.10 and 16,894.20 is: 25,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,921.80 : 56,915.10 = 16,894.20 : x
  2. Step 2: Convert to fraction form
    37,921.80/56,915.10 = 16,894.20/x
  3. Step 3: Cross multiply
    37,921.80x = 56,915.10 × 16,894.20
  4. Step 4: Simplify right side
    37,921.80x = 961,535,082.42
  5. Step 5: Solve for x
    x = 961,535,082.42/37,921.80
  6. Step 6: Final answer
    x = 25,355.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.