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Finding the Fourth Proportional to 9,341.59, 12,891.22 and 5,308.80

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Solution

The fourth proportional to 9,341.59, 12,891.22 and 5,308.80 is: 7,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.59 : 12,891.22 = 5,308.80 : x
  2. Step 2: Convert to fraction form
    9,341.59/12,891.22 = 5,308.80/x
  3. Step 3: Cross multiply
    9,341.59x = 12,891.22 × 5,308.80
  4. Step 4: Simplify right side
    9,341.59x = 68,436,817.74
  5. Step 5: Solve for x
    x = 68,436,817.74/9,341.59
  6. Step 6: Final answer
    x = 7,326.04

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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.