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Finding the Fourth Proportional to 70,885.67, 106,449.84 and 47,344.49

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Solution

The fourth proportional to 70,885.67, 106,449.84 and 47,344.49 is: 71,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,885.67 : 106,449.84 = 47,344.49 : x
  2. Step 2: Convert to fraction form
    70,885.67/106,449.84 = 47,344.49/x
  3. Step 3: Cross multiply
    70,885.67x = 106,449.84 × 47,344.49
  4. Step 4: Simplify right side
    70,885.67x = 5,039,812,616.41
  5. Step 5: Solve for x
    x = 5,039,812,616.41/70,885.67
  6. Step 6: Final answer
    x = 71,097.77

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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.