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Finding the Fourth Proportional to 3,368.63, 5,053.13 and 1,028.71

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Solution

The fourth proportional to 3,368.63, 5,053.13 and 1,028.71 is: 1,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.63 : 5,053.13 = 1,028.71 : x
  2. Step 2: Convert to fraction form
    3,368.63/5,053.13 = 1,028.71/x
  3. Step 3: Cross multiply
    3,368.63x = 5,053.13 × 1,028.71
  4. Step 4: Simplify right side
    3,368.63x = 5,198,174.95
  5. Step 5: Solve for x
    x = 5,198,174.95/3,368.63
  6. Step 6: Final answer
    x = 1,543.11

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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.