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Finding the Fourth Proportional to 70,697.12, 106,061.26 and 23,310.32

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Solution

The fourth proportional to 70,697.12, 106,061.26 and 23,310.32 is: 34,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,697.12 : 106,061.26 = 23,310.32 : x
  2. Step 2: Convert to fraction form
    70,697.12/106,061.26 = 23,310.32/x
  3. Step 3: Cross multiply
    70,697.12x = 106,061.26 × 23,310.32
  4. Step 4: Simplify right side
    70,697.12x = 2,472,321,910.20
  5. Step 5: Solve for x
    x = 2,472,321,910.20/70,697.12
  6. Step 6: Final answer
    x = 34,970.62

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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.