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Finding the Fourth Proportional to 19,398.69, 26,773.08 and 11,849.40

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Solution

The fourth proportional to 19,398.69, 26,773.08 and 11,849.40 is: 16,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.69 : 26,773.08 = 11,849.40 : x
  2. Step 2: Convert to fraction form
    19,398.69/26,773.08 = 11,849.40/x
  3. Step 3: Cross multiply
    19,398.69x = 26,773.08 × 11,849.40
  4. Step 4: Simplify right side
    19,398.69x = 317,244,934.15
  5. Step 5: Solve for x
    x = 317,244,934.15/19,398.69
  6. Step 6: Final answer
    x = 16,353.94

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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.