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Finding the Fourth Proportional to 75,777.76, 113,662.60 and 23,187.28

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Solution

The fourth proportional to 75,777.76, 113,662.60 and 23,187.28 is: 34,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,777.76 : 113,662.60 = 23,187.28 : x
  2. Step 2: Convert to fraction form
    75,777.76/113,662.60 = 23,187.28/x
  3. Step 3: Cross multiply
    75,777.76x = 113,662.60 × 23,187.28
  4. Step 4: Simplify right side
    75,777.76x = 2,635,526,531.73
  5. Step 5: Solve for x
    x = 2,635,526,531.73/75,777.76
  6. Step 6: Final answer
    x = 34,779.68

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1.5x scale

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.