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Finding the Fourth Proportional to 8,473.80, 12,707.10 and 4,092.60

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Solution

The fourth proportional to 8,473.80, 12,707.10 and 4,092.60 is: 6,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.80 : 12,707.10 = 4,092.60 : x
  2. Step 2: Convert to fraction form
    8,473.80/12,707.10 = 4,092.60/x
  3. Step 3: Cross multiply
    8,473.80x = 12,707.10 × 4,092.60
  4. Step 4: Simplify right side
    8,473.80x = 52,005,077.46
  5. Step 5: Solve for x
    x = 52,005,077.46/8,473.80
  6. Step 6: Final answer
    x = 6,137.16

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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.