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Finding the Fourth Proportional to 18,794.50, 25,929.96 and 10,722.35

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Solution

The fourth proportional to 18,794.50, 25,929.96 and 10,722.35 is: 14,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.50 : 25,929.96 = 10,722.35 : x
  2. Step 2: Convert to fraction form
    18,794.50/25,929.96 = 10,722.35/x
  3. Step 3: Cross multiply
    18,794.50x = 25,929.96 × 10,722.35
  4. Step 4: Simplify right side
    18,794.50x = 278,030,106.61
  5. Step 5: Solve for x
    x = 278,030,106.61/18,794.50
  6. Step 6: Final answer
    x = 14,793.16

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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.