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Finding the Fourth Proportional to 12,054.92, 18,103.02 and 7,402.22

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Solution

The fourth proportional to 12,054.92, 18,103.02 and 7,402.22 is: 11,116.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,054.92 : 18,103.02 = 7,402.22 : x
  2. Step 2: Convert to fraction form
    12,054.92/18,103.02 = 7,402.22/x
  3. Step 3: Cross multiply
    12,054.92x = 18,103.02 × 7,402.22
  4. Step 4: Simplify right side
    12,054.92x = 134,002,536.70
  5. Step 5: Solve for x
    x = 134,002,536.70/12,054.92
  6. Step 6: Final answer
    x = 11,116.00

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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.