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Finding the Fourth Proportional to 8,862.76, 12,236.48 and 6,842.52

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Solution

The fourth proportional to 8,862.76, 12,236.48 and 6,842.52 is: 9,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.76 : 12,236.48 = 6,842.52 : x
  2. Step 2: Convert to fraction form
    8,862.76/12,236.48 = 6,842.52/x
  3. Step 3: Cross multiply
    8,862.76x = 12,236.48 × 6,842.52
  4. Step 4: Simplify right side
    8,862.76x = 83,728,359.13
  5. Step 5: Solve for x
    x = 83,728,359.13/8,862.76
  6. Step 6: Final answer
    x = 9,447.21

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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.