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Finding the Fourth Proportional to 22,813.59, 34,264.49 and 18,919.11

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Solution

The fourth proportional to 22,813.59, 34,264.49 and 18,919.11 is: 28,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.59 : 34,264.49 = 18,919.11 : x
  2. Step 2: Convert to fraction form
    22,813.59/34,264.49 = 18,919.11/x
  3. Step 3: Cross multiply
    22,813.59x = 34,264.49 × 18,919.11
  4. Step 4: Simplify right side
    22,813.59x = 648,253,560.81
  5. Step 5: Solve for x
    x = 648,253,560.81/22,813.59
  6. Step 6: Final answer
    x = 28,415.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.