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Finding the Fourth Proportional to 8,636.59, 12,946.98 and 4,193.33

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Solution

The fourth proportional to 8,636.59, 12,946.98 and 4,193.33 is: 6,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.59 : 12,946.98 = 4,193.33 : x
  2. Step 2: Convert to fraction form
    8,636.59/12,946.98 = 4,193.33/x
  3. Step 3: Cross multiply
    8,636.59x = 12,946.98 × 4,193.33
  4. Step 4: Simplify right side
    8,636.59x = 54,290,959.64
  5. Step 5: Solve for x
    x = 54,290,959.64/8,636.59
  6. Step 6: Final answer
    x = 6,286.16

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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.