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Finding the Fourth Proportional to 27,667.40, 41,501.10 and 12,115.40

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Solution

The fourth proportional to 27,667.40, 41,501.10 and 12,115.40 is: 18,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.40 : 41,501.10 = 12,115.40 : x
  2. Step 2: Convert to fraction form
    27,667.40/41,501.10 = 12,115.40/x
  3. Step 3: Cross multiply
    27,667.40x = 41,501.10 × 12,115.40
  4. Step 4: Simplify right side
    27,667.40x = 502,802,426.94
  5. Step 5: Solve for x
    x = 502,802,426.94/27,667.40
  6. Step 6: Final answer
    x = 18,173.10

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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.