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Finding the Fourth Proportional to 1,532.15, 2,294.52 and 872.03

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Solution

The fourth proportional to 1,532.15, 2,294.52 and 872.03 is: 1,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.15 : 2,294.52 = 872.03 : x
  2. Step 2: Convert to fraction form
    1,532.15/2,294.52 = 872.03/x
  3. Step 3: Cross multiply
    1,532.15x = 2,294.52 × 872.03
  4. Step 4: Simplify right side
    1,532.15x = 2,000,878.80
  5. Step 5: Solve for x
    x = 2,000,878.80/1,532.15
  6. Step 6: Final answer
    x = 1,305.93

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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.