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Finding the Fourth Proportional to 18,706.03, 25,815.59 and 10,751.43

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Solution

The fourth proportional to 18,706.03, 25,815.59 and 10,751.43 is: 14,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.03 : 25,815.59 = 10,751.43 : x
  2. Step 2: Convert to fraction form
    18,706.03/25,815.59 = 10,751.43/x
  3. Step 3: Cross multiply
    18,706.03x = 25,815.59 × 10,751.43
  4. Step 4: Simplify right side
    18,706.03x = 277,554,508.79
  5. Step 5: Solve for x
    x = 277,554,508.79/18,706.03
  6. Step 6: Final answer
    x = 14,837.70

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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.