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Finding the Fourth Proportional to 18,310.16, 27,453.32 and 12,051.20

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Solution

The fourth proportional to 18,310.16, 27,453.32 and 12,051.20 is: 18,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.16 : 27,453.32 = 12,051.20 : x
  2. Step 2: Convert to fraction form
    18,310.16/27,453.32 = 12,051.20/x
  3. Step 3: Cross multiply
    18,310.16x = 27,453.32 × 12,051.20
  4. Step 4: Simplify right side
    18,310.16x = 330,845,449.98
  5. Step 5: Solve for x
    x = 330,845,449.98/18,310.16
  6. Step 6: Final answer
    x = 18,068.95

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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.