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Finding the Fourth Proportional to 5,798.78, 8,692.97 and 2,100.14

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Solution

The fourth proportional to 5,798.78, 8,692.97 and 2,100.14 is: 3,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.78 : 8,692.97 = 2,100.14 : x
  2. Step 2: Convert to fraction form
    5,798.78/8,692.97 = 2,100.14/x
  3. Step 3: Cross multiply
    5,798.78x = 8,692.97 × 2,100.14
  4. Step 4: Simplify right side
    5,798.78x = 18,256,400.05
  5. Step 5: Solve for x
    x = 18,256,400.05/5,798.78
  6. Step 6: Final answer
    x = 3,148.32

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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.