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Finding the Fourth Proportional to 27,166.78, 37,491.95 and 15,230.89

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Solution

The fourth proportional to 27,166.78, 37,491.95 and 15,230.89 is: 21,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,166.78 : 37,491.95 = 15,230.89 : x
  2. Step 2: Convert to fraction form
    27,166.78/37,491.95 = 15,230.89/x
  3. Step 3: Cross multiply
    27,166.78x = 37,491.95 × 15,230.89
  4. Step 4: Simplify right side
    27,166.78x = 571,035,710.68
  5. Step 5: Solve for x
    x = 571,035,710.68/27,166.78
  6. Step 6: Final answer
    x = 21,019.63

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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.