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Finding the Fourth Proportional to 1,152.48, 1,728.72 and 1,014.24

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Solution

The fourth proportional to 1,152.48, 1,728.72 and 1,014.24 is: 1,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.48 : 1,728.72 = 1,014.24 : x
  2. Step 2: Convert to fraction form
    1,152.48/1,728.72 = 1,014.24/x
  3. Step 3: Cross multiply
    1,152.48x = 1,728.72 × 1,014.24
  4. Step 4: Simplify right side
    1,152.48x = 1,753,336.97
  5. Step 5: Solve for x
    x = 1,753,336.97/1,152.48
  6. Step 6: Final answer
    x = 1,521.36

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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.