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Finding the Fourth Proportional to 26,935.11, 40,402.68 and 7,213.16

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Solution

The fourth proportional to 26,935.11, 40,402.68 and 7,213.16 is: 10,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,935.11 : 40,402.68 = 7,213.16 : x
  2. Step 2: Convert to fraction form
    26,935.11/40,402.68 = 7,213.16/x
  3. Step 3: Cross multiply
    26,935.11x = 40,402.68 × 7,213.16
  4. Step 4: Simplify right side
    26,935.11x = 291,431,069.23
  5. Step 5: Solve for x
    x = 291,431,069.23/26,935.11
  6. Step 6: Final answer
    x = 10,819.75

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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.