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Finding the Fourth Proportional to 26,690.60, 40,035.12 and 6,969.16

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Solution

The fourth proportional to 26,690.60, 40,035.12 and 6,969.16 is: 10,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.60 : 40,035.12 = 6,969.16 : x
  2. Step 2: Convert to fraction form
    26,690.60/40,035.12 = 6,969.16/x
  3. Step 3: Cross multiply
    26,690.60x = 40,035.12 × 6,969.16
  4. Step 4: Simplify right side
    26,690.60x = 279,011,206.94
  5. Step 5: Solve for x
    x = 279,011,206.94/26,690.60
  6. Step 6: Final answer
    x = 10,453.54

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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.