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Finding the Fourth Proportional to 7,659.97, 11,491.88 and 2,730.11

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Solution

The fourth proportional to 7,659.97, 11,491.88 and 2,730.11 is: 4,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.97 : 11,491.88 = 2,730.11 : x
  2. Step 2: Convert to fraction form
    7,659.97/11,491.88 = 2,730.11/x
  3. Step 3: Cross multiply
    7,659.97x = 11,491.88 × 2,730.11
  4. Step 4: Simplify right side
    7,659.97x = 31,374,025.40
  5. Step 5: Solve for x
    x = 31,374,025.40/7,659.97
  6. Step 6: Final answer
    x = 4,095.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.