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Finding the Fourth Proportional to 1,063.62, 1,591.32 and 1,060.89

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Solution

The fourth proportional to 1,063.62, 1,591.32 and 1,060.89 is: 1,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.62 : 1,591.32 = 1,060.89 : x
  2. Step 2: Convert to fraction form
    1,063.62/1,591.32 = 1,060.89/x
  3. Step 3: Cross multiply
    1,063.62x = 1,591.32 × 1,060.89
  4. Step 4: Simplify right side
    1,063.62x = 1,688,215.47
  5. Step 5: Solve for x
    x = 1,688,215.47/1,063.62
  6. Step 6: Final answer
    x = 1,587.24

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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.