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Finding the Fourth Proportional to 36,290.50, 54,435.75 and 11,666.50

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Solution

The fourth proportional to 36,290.50, 54,435.75 and 11,666.50 is: 17,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,290.50 : 54,435.75 = 11,666.50 : x
  2. Step 2: Convert to fraction form
    36,290.50/54,435.75 = 11,666.50/x
  3. Step 3: Cross multiply
    36,290.50x = 54,435.75 × 11,666.50
  4. Step 4: Simplify right side
    36,290.50x = 635,074,677.38
  5. Step 5: Solve for x
    x = 635,074,677.38/36,290.50
  6. Step 6: Final answer
    x = 17,499.75

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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.