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Finding the Fourth Proportional to 26,687.25, 40,043.88 and 17,904.87

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Solution

The fourth proportional to 26,687.25, 40,043.88 and 17,904.87 is: 26,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.25 : 40,043.88 = 17,904.87 : x
  2. Step 2: Convert to fraction form
    26,687.25/40,043.88 = 17,904.87/x
  3. Step 3: Cross multiply
    26,687.25x = 40,043.88 × 17,904.87
  4. Step 4: Simplify right side
    26,687.25x = 716,980,465.70
  5. Step 5: Solve for x
    x = 716,980,465.70/26,687.25
  6. Step 6: Final answer
    x = 26,866.03

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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.