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Finding the Fourth Proportional to 70,039.69, 96,654.65 and 38,208.59

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Solution

The fourth proportional to 70,039.69, 96,654.65 and 38,208.59 is: 52,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.69 : 96,654.65 = 38,208.59 : x
  2. Step 2: Convert to fraction form
    70,039.69/96,654.65 = 38,208.59/x
  3. Step 3: Cross multiply
    70,039.69x = 96,654.65 × 38,208.59
  4. Step 4: Simplify right side
    70,039.69x = 3,693,037,893.44
  5. Step 5: Solve for x
    x = 3,693,037,893.44/70,039.69
  6. Step 6: Final answer
    x = 52,727.79

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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.