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Finding the Fourth Proportional to 67,653.81, 101,495.67 and 20,266.98

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Solution

The fourth proportional to 67,653.81, 101,495.67 and 20,266.98 is: 30,404.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,653.81 : 101,495.67 = 20,266.98 : x
  2. Step 2: Convert to fraction form
    67,653.81/101,495.67 = 20,266.98/x
  3. Step 3: Cross multiply
    67,653.81x = 101,495.67 × 20,266.98
  4. Step 4: Simplify right side
    67,653.81x = 2,057,010,713.98
  5. Step 5: Solve for x
    x = 2,057,010,713.98/67,653.81
  6. Step 6: Final answer
    x = 30,404.95

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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.