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Finding the Fourth Proportional to 1,025.96, 1,538.10 and 701.96

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Solution

The fourth proportional to 1,025.96, 1,538.10 and 701.96 is: 1,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.96 : 1,538.10 = 701.96 : x
  2. Step 2: Convert to fraction form
    1,025.96/1,538.10 = 701.96/x
  3. Step 3: Cross multiply
    1,025.96x = 1,538.10 × 701.96
  4. Step 4: Simplify right side
    1,025.96x = 1,079,684.68
  5. Step 5: Solve for x
    x = 1,079,684.68/1,025.96
  6. Step 6: Final answer
    x = 1,052.37

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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.