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Finding the Fourth Proportional to 70,048.70, 96,662.19 and 38,216.90

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Solution

The fourth proportional to 70,048.70, 96,662.19 and 38,216.90 is: 52,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,048.70 : 96,662.19 = 38,216.90 : x
  2. Step 2: Convert to fraction form
    70,048.70/96,662.19 = 38,216.90/x
  3. Step 3: Cross multiply
    70,048.70x = 96,662.19 × 38,216.90
  4. Step 4: Simplify right side
    70,048.70x = 3,694,129,249.01
  5. Step 5: Solve for x
    x = 3,694,129,249.01/70,048.70
  6. Step 6: Final answer
    x = 52,736.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.