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Finding the Fourth Proportional to 27,389.50, 37,799.24 and 15,448.48

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Solution

The fourth proportional to 27,389.50, 37,799.24 and 15,448.48 is: 21,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.50 : 37,799.24 = 15,448.48 : x
  2. Step 2: Convert to fraction form
    27,389.50/37,799.24 = 15,448.48/x
  3. Step 3: Cross multiply
    27,389.50x = 37,799.24 × 15,448.48
  4. Step 4: Simplify right side
    27,389.50x = 583,940,631.41
  5. Step 5: Solve for x
    x = 583,940,631.41/27,389.50
  6. Step 6: Final answer
    x = 21,319.87

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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.