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Finding the Fourth Proportional to 40,652.52, 60,978.78 and 26,798.28

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Solution

The fourth proportional to 40,652.52, 60,978.78 and 26,798.28 is: 40,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,652.52 : 60,978.78 = 26,798.28 : x
  2. Step 2: Convert to fraction form
    40,652.52/60,978.78 = 26,798.28/x
  3. Step 3: Cross multiply
    40,652.52x = 60,978.78 × 26,798.28
  4. Step 4: Simplify right side
    40,652.52x = 1,634,126,201.06
  5. Step 5: Solve for x
    x = 1,634,126,201.06/40,652.52
  6. Step 6: Final answer
    x = 40,197.42

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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.