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Finding the Fourth Proportional to 47,277.92, 70,791.60 and 28,532.90

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Solution

The fourth proportional to 47,277.92, 70,791.60 and 28,532.90 is: 42,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,277.92 : 70,791.60 = 28,532.90 : x
  2. Step 2: Convert to fraction form
    47,277.92/70,791.60 = 28,532.90/x
  3. Step 3: Cross multiply
    47,277.92x = 70,791.60 × 28,532.90
  4. Step 4: Simplify right side
    47,277.92x = 2,019,889,643.64
  5. Step 5: Solve for x
    x = 2,019,889,643.64/47,277.92
  6. Step 6: Final answer
    x = 42,723.74

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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.