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Finding the Fourth Proportional to 47,894.76, 71,840.52 and 12,832.56

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Solution

The fourth proportional to 47,894.76, 71,840.52 and 12,832.56 is: 19,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,894.76 : 71,840.52 = 12,832.56 : x
  2. Step 2: Convert to fraction form
    47,894.76/71,840.52 = 12,832.56/x
  3. Step 3: Cross multiply
    47,894.76x = 71,840.52 × 12,832.56
  4. Step 4: Simplify right side
    47,894.76x = 921,897,783.33
  5. Step 5: Solve for x
    x = 921,897,783.33/47,894.76
  6. Step 6: Final answer
    x = 19,248.41

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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.