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Finding the Fourth Proportional to 70,799.12, 97,700.74 and 38,967.33

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Solution

The fourth proportional to 70,799.12, 97,700.74 and 38,967.33 is: 53,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,799.12 : 97,700.74 = 38,967.33 : x
  2. Step 2: Convert to fraction form
    70,799.12/97,700.74 = 38,967.33/x
  3. Step 3: Cross multiply
    70,799.12x = 97,700.74 × 38,967.33
  4. Step 4: Simplify right side
    70,799.12x = 3,807,136,879.41
  5. Step 5: Solve for x
    x = 3,807,136,879.41/70,799.12
  6. Step 6: Final answer
    x = 53,773.79

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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.