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Finding the Fourth Proportional to 26,978.88, 40,518.72 and 22,058.88

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Solution

The fourth proportional to 26,978.88, 40,518.72 and 22,058.88 is: 33,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978.88 : 40,518.72 = 22,058.88 : x
  2. Step 2: Convert to fraction form
    26,978.88/40,518.72 = 22,058.88/x
  3. Step 3: Cross multiply
    26,978.88x = 40,518.72 × 22,058.88
  4. Step 4: Simplify right side
    26,978.88x = 893,797,582.23
  5. Step 5: Solve for x
    x = 893,797,582.23/26,978.88
  6. Step 6: Final answer
    x = 33,129.53

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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.