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Finding the Fourth Proportional to 27,753.91, 38,301.80 and 16,429.91

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Solution

The fourth proportional to 27,753.91, 38,301.80 and 16,429.91 is: 22,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.91 : 38,301.80 = 16,429.91 : x
  2. Step 2: Convert to fraction form
    27,753.91/38,301.80 = 16,429.91/x
  3. Step 3: Cross multiply
    27,753.91x = 38,301.80 × 16,429.91
  4. Step 4: Simplify right side
    27,753.91x = 629,294,853.18
  5. Step 5: Solve for x
    x = 629,294,853.18/27,753.91
  6. Step 6: Final answer
    x = 22,674.10

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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.