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Finding the Fourth Proportional to 18,063.30, 24,916.44 and 11,931.04

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Solution

The fourth proportional to 18,063.30, 24,916.44 and 11,931.04 is: 16,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.30 : 24,916.44 = 11,931.04 : x
  2. Step 2: Convert to fraction form
    18,063.30/24,916.44 = 11,931.04/x
  3. Step 3: Cross multiply
    18,063.30x = 24,916.44 × 11,931.04
  4. Step 4: Simplify right side
    18,063.30x = 297,279,042.30
  5. Step 5: Solve for x
    x = 297,279,042.30/18,063.30
  6. Step 6: Final answer
    x = 16,457.63

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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.