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Finding the Fourth Proportional to 1,716.18, 2,572.52 and 792.42

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Solution

The fourth proportional to 1,716.18, 2,572.52 and 792.42 is: 1,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.18 : 2,572.52 = 792.42 : x
  2. Step 2: Convert to fraction form
    1,716.18/2,572.52 = 792.42/x
  3. Step 3: Cross multiply
    1,716.18x = 2,572.52 × 792.42
  4. Step 4: Simplify right side
    1,716.18x = 2,038,516.30
  5. Step 5: Solve for x
    x = 2,038,516.30/1,716.18
  6. Step 6: Final answer
    x = 1,187.82

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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.