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Finding the Fourth Proportional to 70,181.06, 96,855.62 and 39,975.84

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Solution

The fourth proportional to 70,181.06, 96,855.62 and 39,975.84 is: 55,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,181.06 : 96,855.62 = 39,975.84 : x
  2. Step 2: Convert to fraction form
    70,181.06/96,855.62 = 39,975.84/x
  3. Step 3: Cross multiply
    70,181.06x = 96,855.62 × 39,975.84
  4. Step 4: Simplify right side
    70,181.06x = 3,871,884,568.34
  5. Step 5: Solve for x
    x = 3,871,884,568.34/70,181.06
  6. Step 6: Final answer
    x = 55,169.94

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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.