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Finding the Fourth Proportional to 7,958.76, 10,983.72 and 4,423.08

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Solution

The fourth proportional to 7,958.76, 10,983.72 and 4,423.08 is: 6,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.76 : 10,983.72 = 4,423.08 : x
  2. Step 2: Convert to fraction form
    7,958.76/10,983.72 = 4,423.08/x
  3. Step 3: Cross multiply
    7,958.76x = 10,983.72 × 4,423.08
  4. Step 4: Simplify right side
    7,958.76x = 48,581,872.26
  5. Step 5: Solve for x
    x = 48,581,872.26/7,958.76
  6. Step 6: Final answer
    x = 6,104.20

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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.