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Finding the Fourth Proportional to 70,823.44, 97,735.56 and 38,991.68

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Solution

The fourth proportional to 70,823.44, 97,735.56 and 38,991.68 is: 53,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,823.44 : 97,735.56 = 38,991.68 : x
  2. Step 2: Convert to fraction form
    70,823.44/97,735.56 = 38,991.68/x
  3. Step 3: Cross multiply
    70,823.44x = 97,735.56 × 38,991.68
  4. Step 4: Simplify right side
    70,823.44x = 3,810,873,680.14
  5. Step 5: Solve for x
    x = 3,810,873,680.14/70,823.44
  6. Step 6: Final answer
    x = 53,808.09

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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.