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Finding the Fourth Proportional to 18,417.69, 27,593.51 and 11,191.71

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Solution

The fourth proportional to 18,417.69, 27,593.51 and 11,191.71 is: 16,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.69 : 27,593.51 = 11,191.71 : x
  2. Step 2: Convert to fraction form
    18,417.69/27,593.51 = 11,191.71/x
  3. Step 3: Cross multiply
    18,417.69x = 27,593.51 × 11,191.71
  4. Step 4: Simplify right side
    18,417.69x = 308,818,505.84
  5. Step 5: Solve for x
    x = 308,818,505.84/18,417.69
  6. Step 6: Final answer
    x = 16,767.49

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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.