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Finding the Fourth Proportional to 67,673.88, 93,396.98 and 38,994.68

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Solution

The fourth proportional to 67,673.88, 93,396.98 and 38,994.68 is: 53,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,673.88 : 93,396.98 = 38,994.68 : x
  2. Step 2: Convert to fraction form
    67,673.88/93,396.98 = 38,994.68/x
  3. Step 3: Cross multiply
    67,673.88x = 93,396.98 × 38,994.68
  4. Step 4: Simplify right side
    67,673.88x = 3,641,985,679.05
  5. Step 5: Solve for x
    x = 3,641,985,679.05/67,673.88
  6. Step 6: Final answer
    x = 53,816.71

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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.