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Finding the Fourth Proportional to 70,832.70, 106,212.60 and 26,436.60

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Solution

The fourth proportional to 70,832.70, 106,212.60 and 26,436.60 is: 39,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,832.70 : 106,212.60 = 26,436.60 : x
  2. Step 2: Convert to fraction form
    70,832.70/106,212.60 = 26,436.60/x
  3. Step 3: Cross multiply
    70,832.70x = 106,212.60 × 26,436.60
  4. Step 4: Simplify right side
    70,832.70x = 2,807,900,021.16
  5. Step 5: Solve for x
    x = 2,807,900,021.16/70,832.70
  6. Step 6: Final answer
    x = 39,641.30

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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.