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Finding the Fourth Proportional to 67,789.99, 93,553.62 and 39,098.98

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Solution

The fourth proportional to 67,789.99, 93,553.62 and 39,098.98 is: 53,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,789.99 : 93,553.62 = 39,098.98 : x
  2. Step 2: Convert to fraction form
    67,789.99/93,553.62 = 39,098.98/x
  3. Step 3: Cross multiply
    67,789.99x = 93,553.62 × 39,098.98
  4. Step 4: Simplify right side
    67,789.99x = 3,657,850,649.54
  5. Step 5: Solve for x
    x = 3,657,850,649.54/67,789.99
  6. Step 6: Final answer
    x = 53,958.57

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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.