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Finding the Fourth Proportional to 8,068.43, 11,129.94 and 7,497.59

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Solution

The fourth proportional to 8,068.43, 11,129.94 and 7,497.59 is: 10,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.43 : 11,129.94 = 7,497.59 : x
  2. Step 2: Convert to fraction form
    8,068.43/11,129.94 = 7,497.59/x
  3. Step 3: Cross multiply
    8,068.43x = 11,129.94 × 7,497.59
  4. Step 4: Simplify right side
    8,068.43x = 83,447,705.68
  5. Step 5: Solve for x
    x = 83,447,705.68/8,068.43
  6. Step 6: Final answer
    x = 10,342.50

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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.