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Finding the Fourth Proportional to 10,603.92, 15,889.29 and 4,026.54

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Solution

The fourth proportional to 10,603.92, 15,889.29 and 4,026.54 is: 6,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.92 : 15,889.29 = 4,026.54 : x
  2. Step 2: Convert to fraction form
    10,603.92/15,889.29 = 4,026.54/x
  3. Step 3: Cross multiply
    10,603.92x = 15,889.29 × 4,026.54
  4. Step 4: Simplify right side
    10,603.92x = 63,978,861.76
  5. Step 5: Solve for x
    x = 63,978,861.76/10,603.92
  6. Step 6: Final answer
    x = 6,033.51

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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.