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Finding the Fourth Proportional to 5,007.50, 6,910.86 and 2,883.11

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Solution

The fourth proportional to 5,007.50, 6,910.86 and 2,883.11 is: 3,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.50 : 6,910.86 = 2,883.11 : x
  2. Step 2: Convert to fraction form
    5,007.50/6,910.86 = 2,883.11/x
  3. Step 3: Cross multiply
    5,007.50x = 6,910.86 × 2,883.11
  4. Step 4: Simplify right side
    5,007.50x = 19,924,720.60
  5. Step 5: Solve for x
    x = 19,924,720.60/5,007.50
  6. Step 6: Final answer
    x = 3,978.98

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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.