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Finding the Fourth Proportional to 18,493.87, 25,519.71 and 10,535.62

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Solution

The fourth proportional to 18,493.87, 25,519.71 and 10,535.62 is: 14,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.87 : 25,519.71 = 10,535.62 : x
  2. Step 2: Convert to fraction form
    18,493.87/25,519.71 = 10,535.62/x
  3. Step 3: Cross multiply
    18,493.87x = 25,519.71 × 10,535.62
  4. Step 4: Simplify right side
    18,493.87x = 268,865,967.07
  5. Step 5: Solve for x
    x = 268,865,967.07/18,493.87
  6. Step 6: Final answer
    x = 14,538.11

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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.