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Finding the Fourth Proportional to 8,841.69, 12,201.21 and 5,064.57

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Solution

The fourth proportional to 8,841.69, 12,201.21 and 5,064.57 is: 6,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.69 : 12,201.21 = 5,064.57 : x
  2. Step 2: Convert to fraction form
    8,841.69/12,201.21 = 5,064.57/x
  3. Step 3: Cross multiply
    8,841.69x = 12,201.21 × 5,064.57
  4. Step 4: Simplify right side
    8,841.69x = 61,793,882.13
  5. Step 5: Solve for x
    x = 61,793,882.13/8,841.69
  6. Step 6: Final answer
    x = 6,988.92

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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.