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Finding the Fourth Proportional to 2,999.76, 4,140.28 and 2,004.27

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Solution

The fourth proportional to 2,999.76, 4,140.28 and 2,004.27 is: 2,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.76 : 4,140.28 = 2,004.27 : x
  2. Step 2: Convert to fraction form
    2,999.76/4,140.28 = 2,004.27/x
  3. Step 3: Cross multiply
    2,999.76x = 4,140.28 × 2,004.27
  4. Step 4: Simplify right side
    2,999.76x = 8,298,239.00
  5. Step 5: Solve for x
    x = 8,298,239.00/2,999.76
  6. Step 6: Final answer
    x = 2,766.30

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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.