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Finding the Fourth Proportional to 27,166.86, 37,488.69 and 15,228

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Solution

The fourth proportional to 27,166.86, 37,488.69 and 15,228 is: 21,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,166.86 : 37,488.69 = 15,228 : x
  2. Step 2: Convert to fraction form
    27,166.86/37,488.69 = 15,228/x
  3. Step 3: Cross multiply
    27,166.86x = 37,488.69 × 15,228
  4. Step 4: Simplify right side
    27,166.86x = 570,877,771.32
  5. Step 5: Solve for x
    x = 570,877,771.32/27,166.86
  6. Step 6: Final answer
    x = 21,013.76

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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.