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Finding the Fourth Proportional to 7,065.68, 9,750.17 and 4,081.02

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Solution

The fourth proportional to 7,065.68, 9,750.17 and 4,081.02 is: 5,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.68 : 9,750.17 = 4,081.02 : x
  2. Step 2: Convert to fraction form
    7,065.68/9,750.17 = 4,081.02/x
  3. Step 3: Cross multiply
    7,065.68x = 9,750.17 × 4,081.02
  4. Step 4: Simplify right side
    7,065.68x = 39,790,618.37
  5. Step 5: Solve for x
    x = 39,790,618.37/7,065.68
  6. Step 6: Final answer
    x = 5,631.54

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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.