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Finding the Fourth Proportional to 5,575.65, 8,363.48 and 5,206.61

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Solution

The fourth proportional to 5,575.65, 8,363.48 and 5,206.61 is: 7,809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.65 : 8,363.48 = 5,206.61 : x
  2. Step 2: Convert to fraction form
    5,575.65/8,363.48 = 5,206.61/x
  3. Step 3: Cross multiply
    5,575.65x = 8,363.48 × 5,206.61
  4. Step 4: Simplify right side
    5,575.65x = 43,545,310.75
  5. Step 5: Solve for x
    x = 43,545,310.75/5,575.65
  6. Step 6: Final answer
    x = 7,809.91

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Double scale
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Similar ratio
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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.