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Finding the Fourth Proportional to 1,182.24, 1,632.96 and 834.48

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Solution

The fourth proportional to 1,182.24, 1,632.96 and 834.48 is: 1,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.24 : 1,632.96 = 834.48 : x
  2. Step 2: Convert to fraction form
    1,182.24/1,632.96 = 834.48/x
  3. Step 3: Cross multiply
    1,182.24x = 1,632.96 × 834.48
  4. Step 4: Simplify right side
    1,182.24x = 1,362,672.46
  5. Step 5: Solve for x
    x = 1,362,672.46/1,182.24
  6. Step 6: Final answer
    x = 1,152.62

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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.