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Finding the Fourth Proportional to 27,615.99, 38,115.01 and 16,284.80

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Solution

The fourth proportional to 27,615.99, 38,115.01 and 16,284.80 is: 22,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.99 : 38,115.01 = 16,284.80 : x
  2. Step 2: Convert to fraction form
    27,615.99/38,115.01 = 16,284.80/x
  3. Step 3: Cross multiply
    27,615.99x = 38,115.01 × 16,284.80
  4. Step 4: Simplify right side
    27,615.99x = 620,695,124.49
  5. Step 5: Solve for x
    x = 620,695,124.49/27,615.99
  6. Step 6: Final answer
    x = 22,475.93

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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.