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Finding the Fourth Proportional to 2,047.02, 3,068.60 and 747.50

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Solution

The fourth proportional to 2,047.02, 3,068.60 and 747.50 is: 1,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.02 : 3,068.60 = 747.50 : x
  2. Step 2: Convert to fraction form
    2,047.02/3,068.60 = 747.50/x
  3. Step 3: Cross multiply
    2,047.02x = 3,068.60 × 747.50
  4. Step 4: Simplify right side
    2,047.02x = 2,293,778.50
  5. Step 5: Solve for x
    x = 2,293,778.50/2,047.02
  6. Step 6: Final answer
    x = 1,120.55

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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.