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Finding the Fourth Proportional to 70,039.73, 96,654.62 and 38,208.40

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Solution

The fourth proportional to 70,039.73, 96,654.62 and 38,208.40 is: 52,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.73 : 96,654.62 = 38,208.40 : x
  2. Step 2: Convert to fraction form
    70,039.73/96,654.62 = 38,208.40/x
  3. Step 3: Cross multiply
    70,039.73x = 96,654.62 × 38,208.40
  4. Step 4: Simplify right side
    70,039.73x = 3,693,018,236.69
  5. Step 5: Solve for x
    x = 3,693,018,236.69/70,039.73
  6. Step 6: Final answer
    x = 52,727.48

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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.