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Finding the Fourth Proportional to 38,891.69, 58,337.53 and 11,189.69

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Solution

The fourth proportional to 38,891.69, 58,337.53 and 11,189.69 is: 16,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,891.69 : 58,337.53 = 11,189.69 : x
  2. Step 2: Convert to fraction form
    38,891.69/58,337.53 = 11,189.69/x
  3. Step 3: Cross multiply
    38,891.69x = 58,337.53 × 11,189.69
  4. Step 4: Simplify right side
    38,891.69x = 652,778,876.07
  5. Step 5: Solve for x
    x = 652,778,876.07/38,891.69
  6. Step 6: Final answer
    x = 16,784.53

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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.