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Finding the Fourth Proportional to 27,267.68, 37,648.08 and 20,883

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Solution

The fourth proportional to 27,267.68, 37,648.08 and 20,883 is: 28,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,267.68 : 37,648.08 = 20,883 : x
  2. Step 2: Convert to fraction form
    27,267.68/37,648.08 = 20,883/x
  3. Step 3: Cross multiply
    27,267.68x = 37,648.08 × 20,883
  4. Step 4: Simplify right side
    27,267.68x = 786,204,854.64
  5. Step 5: Solve for x
    x = 786,204,854.64/27,267.68
  6. Step 6: Final answer
    x = 28,832.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.