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Finding the Fourth Proportional to 26,958.60, 40,437.90 and 17,117.10

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Solution

The fourth proportional to 26,958.60, 40,437.90 and 17,117.10 is: 25,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,958.60 : 40,437.90 = 17,117.10 : x
  2. Step 2: Convert to fraction form
    26,958.60/40,437.90 = 17,117.10/x
  3. Step 3: Cross multiply
    26,958.60x = 40,437.90 × 17,117.10
  4. Step 4: Simplify right side
    26,958.60x = 692,179,578.09
  5. Step 5: Solve for x
    x = 692,179,578.09/26,958.60
  6. Step 6: Final answer
    x = 25,675.65

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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.