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Finding the Fourth Proportional to 67,266.70, 100,921.65 and 29,812.30

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Solution

The fourth proportional to 67,266.70, 100,921.65 and 29,812.30 is: 44,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,266.70 : 100,921.65 = 29,812.30 : x
  2. Step 2: Convert to fraction form
    67,266.70/100,921.65 = 29,812.30/x
  3. Step 3: Cross multiply
    67,266.70x = 100,921.65 × 29,812.30
  4. Step 4: Simplify right side
    67,266.70x = 3,008,706,506.30
  5. Step 5: Solve for x
    x = 3,008,706,506.30/67,266.70
  6. Step 6: Final answer
    x = 44,728.02

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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.