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Finding the Fourth Proportional to 47,274.92, 70,787.16 and 28,529.96

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Solution

The fourth proportional to 47,274.92, 70,787.16 and 28,529.96 is: 42,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,274.92 : 70,787.16 = 28,529.96 : x
  2. Step 2: Convert to fraction form
    47,274.92/70,787.16 = 28,529.96/x
  3. Step 3: Cross multiply
    47,274.92x = 70,787.16 × 28,529.96
  4. Step 4: Simplify right side
    47,274.92x = 2,019,554,843.31
  5. Step 5: Solve for x
    x = 2,019,554,843.31/47,274.92
  6. Step 6: Final answer
    x = 42,719.37

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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.