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Finding the Fourth Proportional to 2,710.61, 3,740.90 and 1,648.13

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Solution

The fourth proportional to 2,710.61, 3,740.90 and 1,648.13 is: 2,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.61 : 3,740.90 = 1,648.13 : x
  2. Step 2: Convert to fraction form
    2,710.61/3,740.90 = 1,648.13/x
  3. Step 3: Cross multiply
    2,710.61x = 3,740.90 × 1,648.13
  4. Step 4: Simplify right side
    2,710.61x = 6,165,462.57
  5. Step 5: Solve for x
    x = 6,165,462.57/2,710.61
  6. Step 6: Final answer
    x = 2,274.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.