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Finding the Fourth Proportional to 70,188.48, 96,858.48 and 38,358.24

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Solution

The fourth proportional to 70,188.48, 96,858.48 and 38,358.24 is: 52,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,188.48 : 96,858.48 = 38,358.24 : x
  2. Step 2: Convert to fraction form
    70,188.48/96,858.48 = 38,358.24/x
  3. Step 3: Cross multiply
    70,188.48x = 96,858.48 × 38,358.24
  4. Step 4: Simplify right side
    70,188.48x = 3,715,320,821.88
  5. Step 5: Solve for x
    x = 3,715,320,821.88/70,188.48
  6. Step 6: Final answer
    x = 52,933.48

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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.