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Finding the Fourth Proportional to 18,769.59, 25,911.41 and 10,810.28

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Solution

The fourth proportional to 18,769.59, 25,911.41 and 10,810.28 is: 14,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.59 : 25,911.41 = 10,810.28 : x
  2. Step 2: Convert to fraction form
    18,769.59/25,911.41 = 10,810.28/x
  3. Step 3: Cross multiply
    18,769.59x = 25,911.41 × 10,810.28
  4. Step 4: Simplify right side
    18,769.59x = 280,109,597.29
  5. Step 5: Solve for x
    x = 280,109,597.29/18,769.59
  6. Step 6: Final answer
    x = 14,923.59

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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.