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Finding the Fourth Proportional to 1,893.29, 2,612.76 and 1,053.95

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Solution

The fourth proportional to 1,893.29, 2,612.76 and 1,053.95 is: 1,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.29 : 2,612.76 = 1,053.95 : x
  2. Step 2: Convert to fraction form
    1,893.29/2,612.76 = 1,053.95/x
  3. Step 3: Cross multiply
    1,893.29x = 2,612.76 × 1,053.95
  4. Step 4: Simplify right side
    1,893.29x = 2,753,718.40
  5. Step 5: Solve for x
    x = 2,753,718.40/1,893.29
  6. Step 6: Final answer
    x = 1,454.46

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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.