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Finding the Fourth Proportional to 3,079.44, 4,617.72 and 1,026

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Solution

The fourth proportional to 3,079.44, 4,617.72 and 1,026 is: 1,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.44 : 4,617.72 = 1,026 : x
  2. Step 2: Convert to fraction form
    3,079.44/4,617.72 = 1,026/x
  3. Step 3: Cross multiply
    3,079.44x = 4,617.72 × 1,026
  4. Step 4: Simplify right side
    3,079.44x = 4,737,780.72
  5. Step 5: Solve for x
    x = 4,737,780.72/3,079.44
  6. Step 6: Final answer
    x = 1,538.52

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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.