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Finding the Fourth Proportional to 18,460.53, 27,715.41 and 15,704.91

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Solution

The fourth proportional to 18,460.53, 27,715.41 and 15,704.91 is: 23,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.53 : 27,715.41 = 15,704.91 : x
  2. Step 2: Convert to fraction form
    18,460.53/27,715.41 = 15,704.91/x
  3. Step 3: Cross multiply
    18,460.53x = 27,715.41 × 15,704.91
  4. Step 4: Simplify right side
    18,460.53x = 435,268,019.66
  5. Step 5: Solve for x
    x = 435,268,019.66/18,460.53
  6. Step 6: Final answer
    x = 23,578.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.