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Finding the Fourth Proportional to 1,357.67, 1,868.82 and 1,182.71

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Solution

The fourth proportional to 1,357.67, 1,868.82 and 1,182.71 is: 1,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.67 : 1,868.82 = 1,182.71 : x
  2. Step 2: Convert to fraction form
    1,357.67/1,868.82 = 1,182.71/x
  3. Step 3: Cross multiply
    1,357.67x = 1,868.82 × 1,182.71
  4. Step 4: Simplify right side
    1,357.67x = 2,210,262.76
  5. Step 5: Solve for x
    x = 2,210,262.76/1,357.67
  6. Step 6: Final answer
    x = 1,627.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.