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Finding the Fourth Proportional to 70,243.12, 96,932.42 and 40,034.98

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Solution

The fourth proportional to 70,243.12, 96,932.42 and 40,034.98 is: 55,246.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,243.12 : 96,932.42 = 40,034.98 : x
  2. Step 2: Convert to fraction form
    70,243.12/96,932.42 = 40,034.98/x
  3. Step 3: Cross multiply
    70,243.12x = 96,932.42 × 40,034.98
  4. Step 4: Simplify right side
    70,243.12x = 3,880,687,496.05
  5. Step 5: Solve for x
    x = 3,880,687,496.05/70,243.12
  6. Step 6: Final answer
    x = 55,246.51

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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.