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Finding the Fourth Proportional to 10,500.71, 15,751.22 and 2,603.25

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Solution

The fourth proportional to 10,500.71, 15,751.22 and 2,603.25 is: 3,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.71 : 15,751.22 = 2,603.25 : x
  2. Step 2: Convert to fraction form
    10,500.71/15,751.22 = 2,603.25/x
  3. Step 3: Cross multiply
    10,500.71x = 15,751.22 × 2,603.25
  4. Step 4: Simplify right side
    10,500.71x = 41,004,350.45
  5. Step 5: Solve for x
    x = 41,004,350.45/10,500.71
  6. Step 6: Final answer
    x = 3,904.91

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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.