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Finding the Fourth Proportional to 28,052.69, 38,717.72 and 16,722.92

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Solution

The fourth proportional to 28,052.69, 38,717.72 and 16,722.92 is: 23,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.69 : 38,717.72 = 16,722.92 : x
  2. Step 2: Convert to fraction form
    28,052.69/38,717.72 = 16,722.92/x
  3. Step 3: Cross multiply
    28,052.69x = 38,717.72 × 16,722.92
  4. Step 4: Simplify right side
    28,052.69x = 647,473,358.91
  5. Step 5: Solve for x
    x = 647,473,358.91/28,052.69
  6. Step 6: Final answer
    x = 23,080.61

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Double scale
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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.