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Finding the Fourth Proportional to 40,216.40, 60,389.40 and 27,126.80

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Solution

The fourth proportional to 40,216.40, 60,389.40 and 27,126.80 is: 40,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,216.40 : 60,389.40 = 27,126.80 : x
  2. Step 2: Convert to fraction form
    40,216.40/60,389.40 = 27,126.80/x
  3. Step 3: Cross multiply
    40,216.40x = 60,389.40 × 27,126.80
  4. Step 4: Simplify right side
    40,216.40x = 1,638,171,175.92
  5. Step 5: Solve for x
    x = 1,638,171,175.92/40,216.40
  6. Step 6: Final answer
    x = 40,733.91

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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.