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Finding the Fourth Proportional to 1,364.24, 1,882.57 and 866.96

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Solution

The fourth proportional to 1,364.24, 1,882.57 and 866.96 is: 1,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.24 : 1,882.57 = 866.96 : x
  2. Step 2: Convert to fraction form
    1,364.24/1,882.57 = 866.96/x
  3. Step 3: Cross multiply
    1,364.24x = 1,882.57 × 866.96
  4. Step 4: Simplify right side
    1,364.24x = 1,632,101.31
  5. Step 5: Solve for x
    x = 1,632,101.31/1,364.24
  6. Step 6: Final answer
    x = 1,196.35

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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.