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Finding the Fourth Proportional to 7,751.31, 11,628.18 and 3,068.97

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Solution

The fourth proportional to 7,751.31, 11,628.18 and 3,068.97 is: 4,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.31 : 11,628.18 = 3,068.97 : x
  2. Step 2: Convert to fraction form
    7,751.31/11,628.18 = 3,068.97/x
  3. Step 3: Cross multiply
    7,751.31x = 11,628.18 × 3,068.97
  4. Step 4: Simplify right side
    7,751.31x = 35,686,535.57
  5. Step 5: Solve for x
    x = 35,686,535.57/7,751.31
  6. Step 6: Final answer
    x = 4,603.94

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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.