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Finding the Fourth Proportional to 8,841.84, 12,202.92 and 5,707.16

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Solution

The fourth proportional to 8,841.84, 12,202.92 and 5,707.16 is: 7,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.84 : 12,202.92 = 5,707.16 : x
  2. Step 2: Convert to fraction form
    8,841.84/12,202.92 = 5,707.16/x
  3. Step 3: Cross multiply
    8,841.84x = 12,202.92 × 5,707.16
  4. Step 4: Simplify right side
    8,841.84x = 69,644,016.91
  5. Step 5: Solve for x
    x = 69,644,016.91/8,841.84
  6. Step 6: Final answer
    x = 7,876.64

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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.