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Finding the Fourth Proportional to 7,318.60, 10,964.22 and 5,751.40

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Solution

The fourth proportional to 7,318.60, 10,964.22 and 5,751.40 is: 8,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.60 : 10,964.22 = 5,751.40 : x
  2. Step 2: Convert to fraction form
    7,318.60/10,964.22 = 5,751.40/x
  3. Step 3: Cross multiply
    7,318.60x = 10,964.22 × 5,751.40
  4. Step 4: Simplify right side
    7,318.60x = 63,059,614.91
  5. Step 5: Solve for x
    x = 63,059,614.91/7,318.60
  6. Step 6: Final answer
    x = 8,616.35

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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.