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Finding the Fourth Proportional to 27,149.72, 37,448.34 and 15,971.72

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Solution

The fourth proportional to 27,149.72, 37,448.34 and 15,971.72 is: 22,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.72 : 37,448.34 = 15,971.72 : x
  2. Step 2: Convert to fraction form
    27,149.72/37,448.34 = 15,971.72/x
  3. Step 3: Cross multiply
    27,149.72x = 37,448.34 × 15,971.72
  4. Step 4: Simplify right side
    27,149.72x = 598,114,400.94
  5. Step 5: Solve for x
    x = 598,114,400.94/27,149.72
  6. Step 6: Final answer
    x = 22,030.22

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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.