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Finding the Fourth Proportional to 6,503.92, 8,972.04 and 4,141.96

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Solution

The fourth proportional to 6,503.92, 8,972.04 and 4,141.96 is: 5,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503.92 : 8,972.04 = 4,141.96 : x
  2. Step 2: Convert to fraction form
    6,503.92/8,972.04 = 4,141.96/x
  3. Step 3: Cross multiply
    6,503.92x = 8,972.04 × 4,141.96
  4. Step 4: Simplify right side
    6,503.92x = 37,161,830.80
  5. Step 5: Solve for x
    x = 37,161,830.80/6,503.92
  6. Step 6: Final answer
    x = 5,713.76

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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.