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Finding the Fourth Proportional to 1,753.32, 2,631 and 713.16

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Solution

The fourth proportional to 1,753.32, 2,631 and 713.16 is: 1,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.32 : 2,631 = 713.16 : x
  2. Step 2: Convert to fraction form
    1,753.32/2,631 = 713.16/x
  3. Step 3: Cross multiply
    1,753.32x = 2,631 × 713.16
  4. Step 4: Simplify right side
    1,753.32x = 1,876,323.96
  5. Step 5: Solve for x
    x = 1,876,323.96/1,753.32
  6. Step 6: Final answer
    x = 1,070.15

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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.