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Finding the Fourth Proportional to 3,742.84, 5,614.21 and 969.50

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Solution

The fourth proportional to 3,742.84, 5,614.21 and 969.50 is: 1,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.84 : 5,614.21 = 969.50 : x
  2. Step 2: Convert to fraction form
    3,742.84/5,614.21 = 969.50/x
  3. Step 3: Cross multiply
    3,742.84x = 5,614.21 × 969.50
  4. Step 4: Simplify right side
    3,742.84x = 5,442,991.84
  5. Step 5: Solve for x
    x = 5,442,991.84/3,742.84
  6. Step 6: Final answer
    x = 1,454.24

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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.