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Finding the Fourth Proportional to 3,717.52, 5,576.54 and 1,409

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Solution

The fourth proportional to 3,717.52, 5,576.54 and 1,409 is: 2,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.52 : 5,576.54 = 1,409 : x
  2. Step 2: Convert to fraction form
    3,717.52/5,576.54 = 1,409/x
  3. Step 3: Cross multiply
    3,717.52x = 5,576.54 × 1,409
  4. Step 4: Simplify right side
    3,717.52x = 7,857,344.86
  5. Step 5: Solve for x
    x = 7,857,344.86/3,717.52
  6. Step 6: Final answer
    x = 2,113.60

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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.