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Finding the Fourth Proportional to 18,877.35, 26,050.51 and 10,919.41

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Solution

The fourth proportional to 18,877.35, 26,050.51 and 10,919.41 is: 15,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.35 : 26,050.51 = 10,919.41 : x
  2. Step 2: Convert to fraction form
    18,877.35/26,050.51 = 10,919.41/x
  3. Step 3: Cross multiply
    18,877.35x = 26,050.51 × 10,919.41
  4. Step 4: Simplify right side
    18,877.35x = 284,456,147.92
  5. Step 5: Solve for x
    x = 284,456,147.92/18,877.35
  6. Step 6: Final answer
    x = 15,068.65

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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.