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Finding the Fourth Proportional to 27,894.60, 38,481.64 and 16,557.64

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Solution

The fourth proportional to 27,894.60, 38,481.64 and 16,557.64 is: 22,841.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,894.60 : 38,481.64 = 16,557.64 : x
  2. Step 2: Convert to fraction form
    27,894.60/38,481.64 = 16,557.64/x
  3. Step 3: Cross multiply
    27,894.60x = 38,481.64 × 16,557.64
  4. Step 4: Simplify right side
    27,894.60x = 637,165,004.13
  5. Step 5: Solve for x
    x = 637,165,004.13/27,894.60
  6. Step 6: Final answer
    x = 22,841.88

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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.