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Finding the Fourth Proportional to 3,713.82, 5,569.62 and 1,248.12

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Solution

The fourth proportional to 3,713.82, 5,569.62 and 1,248.12 is: 1,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.82 : 5,569.62 = 1,248.12 : x
  2. Step 2: Convert to fraction form
    3,713.82/5,569.62 = 1,248.12/x
  3. Step 3: Cross multiply
    3,713.82x = 5,569.62 × 1,248.12
  4. Step 4: Simplify right side
    3,713.82x = 6,951,554.11
  5. Step 5: Solve for x
    x = 6,951,554.11/3,713.82
  6. Step 6: Final answer
    x = 1,871.81

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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.