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Finding the Fourth Proportional to 27,951.88, 38,573.58 and 15,376.54

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Solution

The fourth proportional to 27,951.88, 38,573.58 and 15,376.54 is: 21,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.88 : 38,573.58 = 15,376.54 : x
  2. Step 2: Convert to fraction form
    27,951.88/38,573.58 = 15,376.54/x
  3. Step 3: Cross multiply
    27,951.88x = 38,573.58 × 15,376.54
  4. Step 4: Simplify right side
    27,951.88x = 593,128,195.81
  5. Step 5: Solve for x
    x = 593,128,195.81/27,951.88
  6. Step 6: Final answer
    x = 21,219.62

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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.