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Finding the Fourth Proportional to 12,625.16, 18,901.06 and 7,344.06

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Solution

The fourth proportional to 12,625.16, 18,901.06 and 7,344.06 is: 10,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.16 : 18,901.06 = 7,344.06 : x
  2. Step 2: Convert to fraction form
    12,625.16/18,901.06 = 7,344.06/x
  3. Step 3: Cross multiply
    12,625.16x = 18,901.06 × 7,344.06
  4. Step 4: Simplify right side
    12,625.16x = 138,810,481.98
  5. Step 5: Solve for x
    x = 138,810,481.98/12,625.16
  6. Step 6: Final answer
    x = 10,994.75

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1.5x scale

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.