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Finding the Fourth Proportional to 18,940.51, 28,414.93 and 5,793.91

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Solution

The fourth proportional to 18,940.51, 28,414.93 and 5,793.91 is: 8,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.51 : 28,414.93 = 5,793.91 : x
  2. Step 2: Convert to fraction form
    18,940.51/28,414.93 = 5,793.91/x
  3. Step 3: Cross multiply
    18,940.51x = 28,414.93 × 5,793.91
  4. Step 4: Simplify right side
    18,940.51x = 164,633,547.08
  5. Step 5: Solve for x
    x = 164,633,547.08/18,940.51
  6. Step 6: Final answer
    x = 8,692.14

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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.