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Finding the Fourth Proportional to 66,997.02, 100,510.61 and 22,622.59

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Solution

The fourth proportional to 66,997.02, 100,510.61 and 22,622.59 is: 33,938.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,997.02 : 100,510.61 = 22,622.59 : x
  2. Step 2: Convert to fraction form
    66,997.02/100,510.61 = 22,622.59/x
  3. Step 3: Cross multiply
    66,997.02x = 100,510.61 × 22,622.59
  4. Step 4: Simplify right side
    66,997.02x = 2,273,810,320.68
  5. Step 5: Solve for x
    x = 2,273,810,320.68/66,997.02
  6. Step 6: Final answer
    x = 33,938.98

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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.