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Finding the Fourth Proportional to 8,581.73, 11,842.88 and 5,045

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Solution

The fourth proportional to 8,581.73, 11,842.88 and 5,045 is: 6,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.73 : 11,842.88 = 5,045 : x
  2. Step 2: Convert to fraction form
    8,581.73/11,842.88 = 5,045/x
  3. Step 3: Cross multiply
    8,581.73x = 11,842.88 × 5,045
  4. Step 4: Simplify right side
    8,581.73x = 59,747,329.60
  5. Step 5: Solve for x
    x = 59,747,329.60/8,581.73
  6. Step 6: Final answer
    x = 6,962.15

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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.