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Finding the Fourth Proportional to 13,069.69, 18,045.50 and 8,035.49

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Solution

The fourth proportional to 13,069.69, 18,045.50 and 8,035.49 is: 11,094.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.69 : 18,045.50 = 8,035.49 : x
  2. Step 2: Convert to fraction form
    13,069.69/18,045.50 = 8,035.49/x
  3. Step 3: Cross multiply
    13,069.69x = 18,045.50 × 8,035.49
  4. Step 4: Simplify right side
    13,069.69x = 145,004,434.80
  5. Step 5: Solve for x
    x = 145,004,434.80/13,069.69
  6. Step 6: Final answer
    x = 11,094.71

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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.