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Finding the Fourth Proportional to 47,221.92, 70,815.88 and 15,626.15

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Solution

The fourth proportional to 47,221.92, 70,815.88 and 15,626.15 is: 23,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,221.92 : 70,815.88 = 15,626.15 : x
  2. Step 2: Convert to fraction form
    47,221.92/70,815.88 = 15,626.15/x
  3. Step 3: Cross multiply
    47,221.92x = 70,815.88 × 15,626.15
  4. Step 4: Simplify right side
    47,221.92x = 1,106,579,485.13
  5. Step 5: Solve for x
    x = 1,106,579,485.13/47,221.92
  6. Step 6: Final answer
    x = 23,433.60

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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.