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Finding the Fourth Proportional to 10,726.78, 14,795.06 and 6,250.26

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Solution

The fourth proportional to 10,726.78, 14,795.06 and 6,250.26 is: 8,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,726.78 : 14,795.06 = 6,250.26 : x
  2. Step 2: Convert to fraction form
    10,726.78/14,795.06 = 6,250.26/x
  3. Step 3: Cross multiply
    10,726.78x = 14,795.06 × 6,250.26
  4. Step 4: Simplify right side
    10,726.78x = 92,472,995.95
  5. Step 5: Solve for x
    x = 92,472,995.95/10,726.78
  6. Step 6: Final answer
    x = 8,620.76

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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.