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Finding the Fourth Proportional to 18,916.83, 26,102.10 and 11,464.83

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Solution

The fourth proportional to 18,916.83, 26,102.10 and 11,464.83 is: 15,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.83 : 26,102.10 = 11,464.83 : x
  2. Step 2: Convert to fraction form
    18,916.83/26,102.10 = 11,464.83/x
  3. Step 3: Cross multiply
    18,916.83x = 26,102.10 × 11,464.83
  4. Step 4: Simplify right side
    18,916.83x = 299,256,139.14
  5. Step 5: Solve for x
    x = 299,256,139.14/18,916.83
  6. Step 6: Final answer
    x = 15,819.57

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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.