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Finding the Fourth Proportional to 5,808.53, 8,712.79 and 1,648.55

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Solution

The fourth proportional to 5,808.53, 8,712.79 and 1,648.55 is: 2,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.53 : 8,712.79 = 1,648.55 : x
  2. Step 2: Convert to fraction form
    5,808.53/8,712.79 = 1,648.55/x
  3. Step 3: Cross multiply
    5,808.53x = 8,712.79 × 1,648.55
  4. Step 4: Simplify right side
    5,808.53x = 14,363,433.05
  5. Step 5: Solve for x
    x = 14,363,433.05/5,808.53
  6. Step 6: Final answer
    x = 2,472.82

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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.