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Finding the Fourth Proportional to 2,700.74, 4,052.01 and 969.50

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Solution

The fourth proportional to 2,700.74, 4,052.01 and 969.50 is: 1,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.74 : 4,052.01 = 969.50 : x
  2. Step 2: Convert to fraction form
    2,700.74/4,052.01 = 969.50/x
  3. Step 3: Cross multiply
    2,700.74x = 4,052.01 × 969.50
  4. Step 4: Simplify right side
    2,700.74x = 3,928,423.70
  5. Step 5: Solve for x
    x = 3,928,423.70/2,700.74
  6. Step 6: Final answer
    x = 1,454.57

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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.