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Finding the Fourth Proportional to 7,259.40, 10,872.90 and 5,963.40

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Solution

The fourth proportional to 7,259.40, 10,872.90 and 5,963.40 is: 8,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.40 : 10,872.90 = 5,963.40 : x
  2. Step 2: Convert to fraction form
    7,259.40/10,872.90 = 5,963.40/x
  3. Step 3: Cross multiply
    7,259.40x = 10,872.90 × 5,963.40
  4. Step 4: Simplify right side
    7,259.40x = 64,839,451.86
  5. Step 5: Solve for x
    x = 64,839,451.86/7,259.40
  6. Step 6: Final answer
    x = 8,931.79

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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.