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Finding the Fourth Proportional to 3,751.70, 5,627.58 and 1,154.66

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Solution

The fourth proportional to 3,751.70, 5,627.58 and 1,154.66 is: 1,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.70 : 5,627.58 = 1,154.66 : x
  2. Step 2: Convert to fraction form
    3,751.70/5,627.58 = 1,154.66/x
  3. Step 3: Cross multiply
    3,751.70x = 5,627.58 × 1,154.66
  4. Step 4: Simplify right side
    3,751.70x = 6,497,941.52
  5. Step 5: Solve for x
    x = 6,497,941.52/3,751.70
  6. Step 6: Final answer
    x = 1,732.00

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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.