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Finding the Fourth Proportional to 1,718.09, 2,575.01 and 792.36

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Solution

The fourth proportional to 1,718.09, 2,575.01 and 792.36 is: 1,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.09 : 2,575.01 = 792.36 : x
  2. Step 2: Convert to fraction form
    1,718.09/2,575.01 = 792.36/x
  3. Step 3: Cross multiply
    1,718.09x = 2,575.01 × 792.36
  4. Step 4: Simplify right side
    1,718.09x = 2,040,322.05
  5. Step 5: Solve for x
    x = 2,040,322.05/1,718.09
  6. Step 6: Final answer
    x = 1,187.56

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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.