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Finding the Fourth Proportional to 67,063.95, 100,571.02 and 19,666.80

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Solution

The fourth proportional to 67,063.95, 100,571.02 and 19,666.80 is: 29,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,063.95 : 100,571.02 = 19,666.80 : x
  2. Step 2: Convert to fraction form
    67,063.95/100,571.02 = 19,666.80/x
  3. Step 3: Cross multiply
    67,063.95x = 100,571.02 × 19,666.80
  4. Step 4: Simplify right side
    67,063.95x = 1,977,910,086.97
  5. Step 5: Solve for x
    x = 1,977,910,086.97/67,063.95
  6. Step 6: Final answer
    x = 29,492.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.