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Finding the Fourth Proportional to 66,822.48, 100,167.12 and 33,440.64

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Solution

The fourth proportional to 66,822.48, 100,167.12 and 33,440.64 is: 50,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,822.48 : 100,167.12 = 33,440.64 : x
  2. Step 2: Convert to fraction form
    66,822.48/100,167.12 = 33,440.64/x
  3. Step 3: Cross multiply
    66,822.48x = 100,167.12 × 33,440.64
  4. Step 4: Simplify right side
    66,822.48x = 3,349,652,599.76
  5. Step 5: Solve for x
    x = 3,349,652,599.76/66,822.48
  6. Step 6: Final answer
    x = 50,127.63

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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.