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Finding the Fourth Proportional to 66,712.92, 100,106.28 and 27,297.71

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Solution

The fourth proportional to 66,712.92, 100,106.28 and 27,297.71 is: 40,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.92 : 100,106.28 = 27,297.71 : x
  2. Step 2: Convert to fraction form
    66,712.92/100,106.28 = 27,297.71/x
  3. Step 3: Cross multiply
    66,712.92x = 100,106.28 × 27,297.71
  4. Step 4: Simplify right side
    66,712.92x = 2,732,672,075.49
  5. Step 5: Solve for x
    x = 2,732,672,075.49/66,712.92
  6. Step 6: Final answer
    x = 40,961.66

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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.