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Finding the Fourth Proportional to 2,758.61, 3,805.35 and 1,748.46

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Solution

The fourth proportional to 2,758.61, 3,805.35 and 1,748.46 is: 2,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.61 : 3,805.35 = 1,748.46 : x
  2. Step 2: Convert to fraction form
    2,758.61/3,805.35 = 1,748.46/x
  3. Step 3: Cross multiply
    2,758.61x = 3,805.35 × 1,748.46
  4. Step 4: Simplify right side
    2,758.61x = 6,653,502.26
  5. Step 5: Solve for x
    x = 6,653,502.26/2,758.61
  6. Step 6: Final answer
    x = 2,411.90

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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.