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Finding the Fourth Proportional to 12,214.46, 16,856.16 and 6,625.46

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Solution

The fourth proportional to 12,214.46, 16,856.16 and 6,625.46 is: 9,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.46 : 16,856.16 = 6,625.46 : x
  2. Step 2: Convert to fraction form
    12,214.46/16,856.16 = 6,625.46/x
  3. Step 3: Cross multiply
    12,214.46x = 16,856.16 × 6,625.46
  4. Step 4: Simplify right side
    12,214.46x = 111,679,813.83
  5. Step 5: Solve for x
    x = 111,679,813.83/12,214.46
  6. Step 6: Final answer
    x = 9,143.25

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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.