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Finding the Fourth Proportional to 1,754.92, 2,633.91 and 715.49

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Solution

The fourth proportional to 1,754.92, 2,633.91 and 715.49 is: 1,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.92 : 2,633.91 = 715.49 : x
  2. Step 2: Convert to fraction form
    1,754.92/2,633.91 = 715.49/x
  3. Step 3: Cross multiply
    1,754.92x = 2,633.91 × 715.49
  4. Step 4: Simplify right side
    1,754.92x = 1,884,536.27
  5. Step 5: Solve for x
    x = 1,884,536.27/1,754.92
  6. Step 6: Final answer
    x = 1,073.86

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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.