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Finding the Fourth Proportional to 70,040.56, 96,655.80 and 38,209.44

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Solution

The fourth proportional to 70,040.56, 96,655.80 and 38,209.44 is: 52,728.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,040.56 : 96,655.80 = 38,209.44 : x
  2. Step 2: Convert to fraction form
    70,040.56/96,655.80 = 38,209.44/x
  3. Step 3: Cross multiply
    70,040.56x = 96,655.80 × 38,209.44
  4. Step 4: Simplify right side
    70,040.56x = 3,693,163,990.75
  5. Step 5: Solve for x
    x = 3,693,163,990.75/70,040.56
  6. Step 6: Final answer
    x = 52,728.93

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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.