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Finding the Fourth Proportional to 5,870.42, 8,805.66 and 1,487.88

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Solution

The fourth proportional to 5,870.42, 8,805.66 and 1,487.88 is: 2,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.42 : 8,805.66 = 1,487.88 : x
  2. Step 2: Convert to fraction form
    5,870.42/8,805.66 = 1,487.88/x
  3. Step 3: Cross multiply
    5,870.42x = 8,805.66 × 1,487.88
  4. Step 4: Simplify right side
    5,870.42x = 13,101,765.40
  5. Step 5: Solve for x
    x = 13,101,765.40/5,870.42
  6. Step 6: Final answer
    x = 2,231.83

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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.