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Finding the Fourth Proportional to 14,599.53, 20,162.16 and 12,578.85

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Solution

The fourth proportional to 14,599.53, 20,162.16 and 12,578.85 is: 17,371.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.53 : 20,162.16 = 12,578.85 : x
  2. Step 2: Convert to fraction form
    14,599.53/20,162.16 = 12,578.85/x
  3. Step 3: Cross multiply
    14,599.53x = 20,162.16 × 12,578.85
  4. Step 4: Simplify right side
    14,599.53x = 253,616,786.32
  5. Step 5: Solve for x
    x = 253,616,786.32/14,599.53
  6. Step 6: Final answer
    x = 17,371.57

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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.