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Finding the Fourth Proportional to 5,275.92, 7,914.83 and 1,765.59

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Solution

The fourth proportional to 5,275.92, 7,914.83 and 1,765.59 is: 2,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.92 : 7,914.83 = 1,765.59 : x
  2. Step 2: Convert to fraction form
    5,275.92/7,914.83 = 1,765.59/x
  3. Step 3: Cross multiply
    5,275.92x = 7,914.83 × 1,765.59
  4. Step 4: Simplify right side
    5,275.92x = 13,974,344.70
  5. Step 5: Solve for x
    x = 13,974,344.70/5,275.92
  6. Step 6: Final answer
    x = 2,648.70

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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.