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Finding the Fourth Proportional to 17,777.68, 26,693.92 and 15,040.32

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Solution

The fourth proportional to 17,777.68, 26,693.92 and 15,040.32 is: 22,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,777.68 : 26,693.92 = 15,040.32 : x
  2. Step 2: Convert to fraction form
    17,777.68/26,693.92 = 15,040.32/x
  3. Step 3: Cross multiply
    17,777.68x = 26,693.92 × 15,040.32
  4. Step 4: Simplify right side
    17,777.68x = 401,485,098.85
  5. Step 5: Solve for x
    x = 401,485,098.85/17,777.68
  6. Step 6: Final answer
    x = 22,583.66

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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.