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Finding the Fourth Proportional to 5,469.68, 7,548.12 and 2,985.68

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Solution

The fourth proportional to 5,469.68, 7,548.12 and 2,985.68 is: 4,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.68 : 7,548.12 = 2,985.68 : x
  2. Step 2: Convert to fraction form
    5,469.68/7,548.12 = 2,985.68/x
  3. Step 3: Cross multiply
    5,469.68x = 7,548.12 × 2,985.68
  4. Step 4: Simplify right side
    5,469.68x = 22,536,270.92
  5. Step 5: Solve for x
    x = 22,536,270.92/5,469.68
  6. Step 6: Final answer
    x = 4,120.22

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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.