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Finding the Fourth Proportional to 18,473.69, 25,494.99 and 10,515.91

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Solution

The fourth proportional to 18,473.69, 25,494.99 and 10,515.91 is: 14,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.69 : 25,494.99 = 10,515.91 : x
  2. Step 2: Convert to fraction form
    18,473.69/25,494.99 = 10,515.91/x
  3. Step 3: Cross multiply
    18,473.69x = 25,494.99 × 10,515.91
  4. Step 4: Simplify right side
    18,473.69x = 268,103,020.29
  5. Step 5: Solve for x
    x = 268,103,020.29/18,473.69
  6. Step 6: Final answer
    x = 14,512.69

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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.