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Finding the Fourth Proportional to 31,706.76, 47,556.54 and 8,335.02

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Solution

The fourth proportional to 31,706.76, 47,556.54 and 8,335.02 is: 12,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.76 : 47,556.54 = 8,335.02 : x
  2. Step 2: Convert to fraction form
    31,706.76/47,556.54 = 8,335.02/x
  3. Step 3: Cross multiply
    31,706.76x = 47,556.54 × 8,335.02
  4. Step 4: Simplify right side
    31,706.76x = 396,384,712.03
  5. Step 5: Solve for x
    x = 396,384,712.03/31,706.76
  6. Step 6: Final answer
    x = 12,501.58

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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.