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Finding the Fourth Proportional to 70,972.46, 106,475.80 and 26,599.60

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Solution

The fourth proportional to 70,972.46, 106,475.80 and 26,599.60 is: 39,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.46 : 106,475.80 = 26,599.60 : x
  2. Step 2: Convert to fraction form
    70,972.46/106,475.80 = 26,599.60/x
  3. Step 3: Cross multiply
    70,972.46x = 106,475.80 × 26,599.60
  4. Step 4: Simplify right side
    70,972.46x = 2,832,213,689.68
  5. Step 5: Solve for x
    x = 2,832,213,689.68/70,972.46
  6. Step 6: Final answer
    x = 39,905.81

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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.