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Finding the Fourth Proportional to 5,607.62, 8,411.65 and 2,487.65

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Solution

The fourth proportional to 5,607.62, 8,411.65 and 2,487.65 is: 3,731.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.62 : 8,411.65 = 2,487.65 : x
  2. Step 2: Convert to fraction form
    5,607.62/8,411.65 = 2,487.65/x
  3. Step 3: Cross multiply
    5,607.62x = 8,411.65 × 2,487.65
  4. Step 4: Simplify right side
    5,607.62x = 20,925,241.12
  5. Step 5: Solve for x
    x = 20,925,241.12/5,607.62
  6. Step 6: Final answer
    x = 3,731.57

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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.