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Finding the Fourth Proportional to 59,839.50, 89,769.88 and 19,860.88

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Solution

The fourth proportional to 59,839.50, 89,769.88 and 19,860.88 is: 29,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,839.50 : 89,769.88 = 19,860.88 : x
  2. Step 2: Convert to fraction form
    59,839.50/89,769.88 = 19,860.88/x
  3. Step 3: Cross multiply
    59,839.50x = 89,769.88 × 19,860.88
  4. Step 4: Simplify right side
    59,839.50x = 1,782,908,814.29
  5. Step 5: Solve for x
    x = 1,782,908,814.29/59,839.50
  6. Step 6: Final answer
    x = 29,794.85

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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.