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Finding the Fourth Proportional to 70,039.50, 96,654.51 and 38,208.53

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Solution

The fourth proportional to 70,039.50, 96,654.51 and 38,208.53 is: 52,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.50 : 96,654.51 = 38,208.53 : x
  2. Step 2: Convert to fraction form
    70,039.50/96,654.51 = 38,208.53/x
  3. Step 3: Cross multiply
    70,039.50x = 96,654.51 × 38,208.53
  4. Step 4: Simplify right side
    70,039.50x = 3,693,026,744.97
  5. Step 5: Solve for x
    x = 3,693,026,744.97/70,039.50
  6. Step 6: Final answer
    x = 52,727.77

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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.