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Finding the Fourth Proportional to 47,363.90, 70,984.10 and 19,251.09

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Solution

The fourth proportional to 47,363.90, 70,984.10 and 19,251.09 is: 28,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,363.90 : 70,984.10 = 19,251.09 : x
  2. Step 2: Convert to fraction form
    47,363.90/70,984.10 = 19,251.09/x
  3. Step 3: Cross multiply
    47,363.90x = 70,984.10 × 19,251.09
  4. Step 4: Simplify right side
    47,363.90x = 1,366,521,345.80
  5. Step 5: Solve for x
    x = 1,366,521,345.80/47,363.90
  6. Step 6: Final answer
    x = 28,851.54

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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.