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Finding the Fourth Proportional to 7,631.88, 11,452.14 and 3,248.88

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Solution

The fourth proportional to 7,631.88, 11,452.14 and 3,248.88 is: 4,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.88 : 11,452.14 = 3,248.88 : x
  2. Step 2: Convert to fraction form
    7,631.88/11,452.14 = 3,248.88/x
  3. Step 3: Cross multiply
    7,631.88x = 11,452.14 × 3,248.88
  4. Step 4: Simplify right side
    7,631.88x = 37,206,628.60
  5. Step 5: Solve for x
    x = 37,206,628.60/7,631.88
  6. Step 6: Final answer
    x = 4,875.16

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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.