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Finding the Fourth Proportional to 27,881.17, 38,476.16 and 15,945.01

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Solution

The fourth proportional to 27,881.17, 38,476.16 and 15,945.01 is: 22,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.17 : 38,476.16 = 15,945.01 : x
  2. Step 2: Convert to fraction form
    27,881.17/38,476.16 = 15,945.01/x
  3. Step 3: Cross multiply
    27,881.17x = 38,476.16 × 15,945.01
  4. Step 4: Simplify right side
    27,881.17x = 613,502,755.96
  5. Step 5: Solve for x
    x = 613,502,755.96/27,881.17
  6. Step 6: Final answer
    x = 22,004.20

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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.