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Finding the Fourth Proportional to 8,575.80, 11,834.76 and 5,218.74

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Solution

The fourth proportional to 8,575.80, 11,834.76 and 5,218.74 is: 7,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.80 : 11,834.76 = 5,218.74 : x
  2. Step 2: Convert to fraction form
    8,575.80/11,834.76 = 5,218.74/x
  3. Step 3: Cross multiply
    8,575.80x = 11,834.76 × 5,218.74
  4. Step 4: Simplify right side
    8,575.80x = 61,762,535.40
  5. Step 5: Solve for x
    x = 61,762,535.40/8,575.80
  6. Step 6: Final answer
    x = 7,201.96

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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.