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Finding the Fourth Proportional to 1,414.74, 2,117.66 and 892.93

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Solution

The fourth proportional to 1,414.74, 2,117.66 and 892.93 is: 1,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.74 : 2,117.66 = 892.93 : x
  2. Step 2: Convert to fraction form
    1,414.74/2,117.66 = 892.93/x
  3. Step 3: Cross multiply
    1,414.74x = 2,117.66 × 892.93
  4. Step 4: Simplify right side
    1,414.74x = 1,890,929.67
  5. Step 5: Solve for x
    x = 1,890,929.67/1,414.74
  6. Step 6: Final answer
    x = 1,336.59

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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.