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Finding the Fourth Proportional to 70,328.33, 105,481.11 and 25,975.97

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Solution

The fourth proportional to 70,328.33, 105,481.11 and 25,975.97 is: 38,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.33 : 105,481.11 = 25,975.97 : x
  2. Step 2: Convert to fraction form
    70,328.33/105,481.11 = 25,975.97/x
  3. Step 3: Cross multiply
    70,328.33x = 105,481.11 × 25,975.97
  4. Step 4: Simplify right side
    70,328.33x = 2,739,973,621.52
  5. Step 5: Solve for x
    x = 2,739,973,621.52/70,328.33
  6. Step 6: Final answer
    x = 38,959.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.