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Finding the Fourth Proportional to 4,981.72, 7,472.70 and 2,059.24

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Solution

The fourth proportional to 4,981.72, 7,472.70 and 2,059.24 is: 3,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.72 : 7,472.70 = 2,059.24 : x
  2. Step 2: Convert to fraction form
    4,981.72/7,472.70 = 2,059.24/x
  3. Step 3: Cross multiply
    4,981.72x = 7,472.70 × 2,059.24
  4. Step 4: Simplify right side
    4,981.72x = 15,388,082.75
  5. Step 5: Solve for x
    x = 15,388,082.75/4,981.72
  6. Step 6: Final answer
    x = 3,088.91

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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.