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Finding the Fourth Proportional to 3,417.67, 5,126.55 and 952.45

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Solution

The fourth proportional to 3,417.67, 5,126.55 and 952.45 is: 1,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.67 : 5,126.55 = 952.45 : x
  2. Step 2: Convert to fraction form
    3,417.67/5,126.55 = 952.45/x
  3. Step 3: Cross multiply
    3,417.67x = 5,126.55 × 952.45
  4. Step 4: Simplify right side
    3,417.67x = 4,882,782.55
  5. Step 5: Solve for x
    x = 4,882,782.55/3,417.67
  6. Step 6: Final answer
    x = 1,428.69

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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.