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Finding the Fourth Proportional to 9,043.17, 12,489.57 and 8,295.95

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Solution

The fourth proportional to 9,043.17, 12,489.57 and 8,295.95 is: 11,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,043.17 : 12,489.57 = 8,295.95 : x
  2. Step 2: Convert to fraction form
    9,043.17/12,489.57 = 8,295.95/x
  3. Step 3: Cross multiply
    9,043.17x = 12,489.57 × 8,295.95
  4. Step 4: Simplify right side
    9,043.17x = 103,612,785.79
  5. Step 5: Solve for x
    x = 103,612,785.79/9,043.17
  6. Step 6: Final answer
    x = 11,457.57

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Double scale
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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.