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Finding the Fourth Proportional to 27,553.97, 38,024.85 and 14,978.99

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Solution

The fourth proportional to 27,553.97, 38,024.85 and 14,978.99 is: 20,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,553.97 : 38,024.85 = 14,978.99 : x
  2. Step 2: Convert to fraction form
    27,553.97/38,024.85 = 14,978.99/x
  3. Step 3: Cross multiply
    27,553.97x = 38,024.85 × 14,978.99
  4. Step 4: Simplify right side
    27,553.97x = 569,573,657.78
  5. Step 5: Solve for x
    x = 569,573,657.78/27,553.97
  6. Step 6: Final answer
    x = 20,671.20

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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.