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Finding the Fourth Proportional to 26,896.40, 40,344.60 and 26,464.40

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Solution

The fourth proportional to 26,896.40, 40,344.60 and 26,464.40 is: 39,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,896.40 : 40,344.60 = 26,464.40 : x
  2. Step 2: Convert to fraction form
    26,896.40/40,344.60 = 26,464.40/x
  3. Step 3: Cross multiply
    26,896.40x = 40,344.60 × 26,464.40
  4. Step 4: Simplify right side
    26,896.40x = 1,067,695,632.24
  5. Step 5: Solve for x
    x = 1,067,695,632.24/26,896.40
  6. Step 6: Final answer
    x = 39,696.60

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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.