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Finding the Fourth Proportional to 38,894.88, 58,342.32 and 11,192.88

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Solution

The fourth proportional to 38,894.88, 58,342.32 and 11,192.88 is: 16,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,894.88 : 58,342.32 = 11,192.88 : x
  2. Step 2: Convert to fraction form
    38,894.88/58,342.32 = 11,192.88/x
  3. Step 3: Cross multiply
    38,894.88x = 58,342.32 × 11,192.88
  4. Step 4: Simplify right side
    38,894.88x = 653,018,586.68
  5. Step 5: Solve for x
    x = 653,018,586.68/38,894.88
  6. Step 6: Final answer
    x = 16,789.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.