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Finding the Fourth Proportional to 70,772.56, 106,172.76 and 23,385.74

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Solution

The fourth proportional to 70,772.56, 106,172.76 and 23,385.74 is: 35,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,772.56 : 106,172.76 = 23,385.74 : x
  2. Step 2: Convert to fraction form
    70,772.56/106,172.76 = 23,385.74/x
  3. Step 3: Cross multiply
    70,772.56x = 106,172.76 × 23,385.74
  4. Step 4: Simplify right side
    70,772.56x = 2,482,928,560.44
  5. Step 5: Solve for x
    x = 2,482,928,560.44/70,772.56
  6. Step 6: Final answer
    x = 35,083.21

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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.