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Finding the Fourth Proportional to 47,304.62, 70,963.80 and 14,020.40

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Solution

The fourth proportional to 47,304.62, 70,963.80 and 14,020.40 is: 21,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,304.62 : 70,963.80 = 14,020.40 : x
  2. Step 2: Convert to fraction form
    47,304.62/70,963.80 = 14,020.40/x
  3. Step 3: Cross multiply
    47,304.62x = 70,963.80 × 14,020.40
  4. Step 4: Simplify right side
    47,304.62x = 994,940,861.52
  5. Step 5: Solve for x
    x = 994,940,861.52/47,304.62
  6. Step 6: Final answer
    x = 21,032.64

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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.