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Finding the Fourth Proportional to 1,835.16, 2,753.55 and 741.66

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Solution

The fourth proportional to 1,835.16, 2,753.55 and 741.66 is: 1,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.16 : 2,753.55 = 741.66 : x
  2. Step 2: Convert to fraction form
    1,835.16/2,753.55 = 741.66/x
  3. Step 3: Cross multiply
    1,835.16x = 2,753.55 × 741.66
  4. Step 4: Simplify right side
    1,835.16x = 2,042,197.89
  5. Step 5: Solve for x
    x = 2,042,197.89/1,835.16
  6. Step 6: Final answer
    x = 1,112.82

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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.