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Finding the Fourth Proportional to 5,903.78, 8,850.20 and 2,615.12

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Solution

The fourth proportional to 5,903.78, 8,850.20 and 2,615.12 is: 3,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903.78 : 8,850.20 = 2,615.12 : x
  2. Step 2: Convert to fraction form
    5,903.78/8,850.20 = 2,615.12/x
  3. Step 3: Cross multiply
    5,903.78x = 8,850.20 × 2,615.12
  4. Step 4: Simplify right side
    5,903.78x = 23,144,335.02
  5. Step 5: Solve for x
    x = 23,144,335.02/5,903.78
  6. Step 6: Final answer
    x = 3,920.26

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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.