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Finding the Fourth Proportional to 70,233.60, 96,919.44 and 38,403.60

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Solution

The fourth proportional to 70,233.60, 96,919.44 and 38,403.60 is: 52,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,233.60 : 96,919.44 = 38,403.60 : x
  2. Step 2: Convert to fraction form
    70,233.60/96,919.44 = 38,403.60/x
  3. Step 3: Cross multiply
    70,233.60x = 96,919.44 × 38,403.60
  4. Step 4: Simplify right side
    70,233.60x = 3,722,055,405.98
  5. Step 5: Solve for x
    x = 3,722,055,405.98/70,233.60
  6. Step 6: Final answer
    x = 52,995.37

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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.