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Finding the Fourth Proportional to 4,326.48, 6,489.72 and 1,248.48

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Solution

The fourth proportional to 4,326.48, 6,489.72 and 1,248.48 is: 1,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,326.48 : 6,489.72 = 1,248.48 : x
  2. Step 2: Convert to fraction form
    4,326.48/6,489.72 = 1,248.48/x
  3. Step 3: Cross multiply
    4,326.48x = 6,489.72 × 1,248.48
  4. Step 4: Simplify right side
    4,326.48x = 8,102,285.63
  5. Step 5: Solve for x
    x = 8,102,285.63/4,326.48
  6. Step 6: Final answer
    x = 1,872.72

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Similar ratio
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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.