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Finding the Fourth Proportional to 3,347, 5,020.62 and 1,038.44

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Solution

The fourth proportional to 3,347, 5,020.62 and 1,038.44 is: 1,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347 : 5,020.62 = 1,038.44 : x
  2. Step 2: Convert to fraction form
    3,347/5,020.62 = 1,038.44/x
  3. Step 3: Cross multiply
    3,347x = 5,020.62 × 1,038.44
  4. Step 4: Simplify right side
    3,347x = 5,213,612.63
  5. Step 5: Solve for x
    x = 5,213,612.63/3,347
  6. Step 6: Final answer
    x = 1,557.70

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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.