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Finding the Fourth Proportional to 26,986.11, 40,477.71 and 8,266.17

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Solution

The fourth proportional to 26,986.11, 40,477.71 and 8,266.17 is: 12,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986.11 : 40,477.71 = 8,266.17 : x
  2. Step 2: Convert to fraction form
    26,986.11/40,477.71 = 8,266.17/x
  3. Step 3: Cross multiply
    26,986.11x = 40,477.71 × 8,266.17
  4. Step 4: Simplify right side
    26,986.11x = 334,595,632.07
  5. Step 5: Solve for x
    x = 334,595,632.07/26,986.11
  6. Step 6: Final answer
    x = 12,398.81

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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.