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Finding the Fourth Proportional to 18,943.08, 28,417.86 and 5,794.08

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Solution

The fourth proportional to 18,943.08, 28,417.86 and 5,794.08 is: 8,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.08 : 28,417.86 = 5,794.08 : x
  2. Step 2: Convert to fraction form
    18,943.08/28,417.86 = 5,794.08/x
  3. Step 3: Cross multiply
    18,943.08x = 28,417.86 × 5,794.08
  4. Step 4: Simplify right side
    18,943.08x = 164,655,354.27
  5. Step 5: Solve for x
    x = 164,655,354.27/18,943.08
  6. Step 6: Final answer
    x = 8,692.11

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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.