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Finding the Fourth Proportional to 18,291.84, 27,426.24 and 12,045.12

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Solution

The fourth proportional to 18,291.84, 27,426.24 and 12,045.12 is: 18,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.84 : 27,426.24 = 12,045.12 : x
  2. Step 2: Convert to fraction form
    18,291.84/27,426.24 = 12,045.12/x
  3. Step 3: Cross multiply
    18,291.84x = 27,426.24 × 12,045.12
  4. Step 4: Simplify right side
    18,291.84x = 330,352,351.95
  5. Step 5: Solve for x
    x = 330,352,351.95/18,291.84
  6. Step 6: Final answer
    x = 18,060.09

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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.