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Finding the Fourth Proportional to 3,417.72, 5,126.58 and 952.54

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Solution

The fourth proportional to 3,417.72, 5,126.58 and 952.54 is: 1,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.72 : 5,126.58 = 952.54 : x
  2. Step 2: Convert to fraction form
    3,417.72/5,126.58 = 952.54/x
  3. Step 3: Cross multiply
    3,417.72x = 5,126.58 × 952.54
  4. Step 4: Simplify right side
    3,417.72x = 4,883,272.51
  5. Step 5: Solve for x
    x = 4,883,272.51/3,417.72
  6. Step 6: Final answer
    x = 1,428.81

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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.