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Finding the Fourth Proportional to 5,151, 7,099.98 and 4,029.96

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Solution

The fourth proportional to 5,151, 7,099.98 and 4,029.96 is: 5,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151 : 7,099.98 = 4,029.96 : x
  2. Step 2: Convert to fraction form
    5,151/7,099.98 = 4,029.96/x
  3. Step 3: Cross multiply
    5,151x = 7,099.98 × 4,029.96
  4. Step 4: Simplify right side
    5,151x = 28,612,635.40
  5. Step 5: Solve for x
    x = 28,612,635.40/5,151
  6. Step 6: Final answer
    x = 5,554.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.