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Finding the Fourth Proportional to 27,980.88, 38,618.80 and 16,044.30

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Solution

The fourth proportional to 27,980.88, 38,618.80 and 16,044.30 is: 22,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.88 : 38,618.80 = 16,044.30 : x
  2. Step 2: Convert to fraction form
    27,980.88/38,618.80 = 16,044.30/x
  3. Step 3: Cross multiply
    27,980.88x = 38,618.80 × 16,044.30
  4. Step 4: Simplify right side
    27,980.88x = 619,611,612.84
  5. Step 5: Solve for x
    x = 619,611,612.84/27,980.88
  6. Step 6: Final answer
    x = 22,144.11

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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.