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Finding the Fourth Proportional to 7,552.80, 10,423.20 and 4,195.65

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Solution

The fourth proportional to 7,552.80, 10,423.20 and 4,195.65 is: 5,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,552.80 : 10,423.20 = 4,195.65 : x
  2. Step 2: Convert to fraction form
    7,552.80/10,423.20 = 4,195.65/x
  3. Step 3: Cross multiply
    7,552.80x = 10,423.20 × 4,195.65
  4. Step 4: Simplify right side
    7,552.80x = 43,732,099.08
  5. Step 5: Solve for x
    x = 43,732,099.08/7,552.80
  6. Step 6: Final answer
    x = 5,790.18

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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.