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Finding the Fourth Proportional to 12,495.69, 18,652.36 and 10,919.24

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Solution

The fourth proportional to 12,495.69, 18,652.36 and 10,919.24 is: 16,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.69 : 18,652.36 = 10,919.24 : x
  2. Step 2: Convert to fraction form
    12,495.69/18,652.36 = 10,919.24/x
  3. Step 3: Cross multiply
    12,495.69x = 18,652.36 × 10,919.24
  4. Step 4: Simplify right side
    12,495.69x = 203,669,595.41
  5. Step 5: Solve for x
    x = 203,669,595.41/12,495.69
  6. Step 6: Final answer
    x = 16,299.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.