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Finding the Fourth Proportional to 47,073.92, 70,620.60 and 13,795.07

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Solution

The fourth proportional to 47,073.92, 70,620.60 and 13,795.07 is: 20,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,073.92 : 70,620.60 = 13,795.07 : x
  2. Step 2: Convert to fraction form
    47,073.92/70,620.60 = 13,795.07/x
  3. Step 3: Cross multiply
    47,073.92x = 70,620.60 × 13,795.07
  4. Step 4: Simplify right side
    47,073.92x = 974,216,120.44
  5. Step 5: Solve for x
    x = 974,216,120.44/47,073.92
  6. Step 6: Final answer
    x = 20,695.45

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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.