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Finding the Fourth Proportional to 18,874.96, 26,045.49 and 10,919.68

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Solution

The fourth proportional to 18,874.96, 26,045.49 and 10,919.68 is: 15,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.96 : 26,045.49 = 10,919.68 : x
  2. Step 2: Convert to fraction form
    18,874.96/26,045.49 = 10,919.68/x
  3. Step 3: Cross multiply
    18,874.96x = 26,045.49 × 10,919.68
  4. Step 4: Simplify right side
    18,874.96x = 284,408,416.24
  5. Step 5: Solve for x
    x = 284,408,416.24/18,874.96
  6. Step 6: Final answer
    x = 15,068.03

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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.