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Finding the Fourth Proportional to 12,237.86, 16,887.92 and 6,934.39

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Solution

The fourth proportional to 12,237.86, 16,887.92 and 6,934.39 is: 9,569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.86 : 16,887.92 = 6,934.39 : x
  2. Step 2: Convert to fraction form
    12,237.86/16,887.92 = 6,934.39/x
  3. Step 3: Cross multiply
    12,237.86x = 16,887.92 × 6,934.39
  4. Step 4: Simplify right side
    12,237.86x = 117,107,423.57
  5. Step 5: Solve for x
    x = 117,107,423.57/12,237.86
  6. Step 6: Final answer
    x = 9,569.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.