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Finding the Fourth Proportional to 27,379.99, 37,784.41 and 16,047.21

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Solution

The fourth proportional to 27,379.99, 37,784.41 and 16,047.21 is: 22,145.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.99 : 37,784.41 = 16,047.21 : x
  2. Step 2: Convert to fraction form
    27,379.99/37,784.41 = 16,047.21/x
  3. Step 3: Cross multiply
    27,379.99x = 37,784.41 × 16,047.21
  4. Step 4: Simplify right side
    27,379.99x = 606,334,463.57
  5. Step 5: Solve for x
    x = 606,334,463.57/27,379.99
  6. Step 6: Final answer
    x = 22,145.17

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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.