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Finding the Fourth Proportional to 27,239.99, 37,589.13 and 15,300.99

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Solution

The fourth proportional to 27,239.99, 37,589.13 and 15,300.99 is: 21,114.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,239.99 : 37,589.13 = 15,300.99 : x
  2. Step 2: Convert to fraction form
    27,239.99/37,589.13 = 15,300.99/x
  3. Step 3: Cross multiply
    27,239.99x = 37,589.13 × 15,300.99
  4. Step 4: Simplify right side
    27,239.99x = 575,150,902.24
  5. Step 5: Solve for x
    x = 575,150,902.24/27,239.99
  6. Step 6: Final answer
    x = 21,114.22

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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.