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Finding the Fourth Proportional to 5,751.90, 7,937.62 and 3,267.90

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Solution

The fourth proportional to 5,751.90, 7,937.62 and 3,267.90 is: 4,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.90 : 7,937.62 = 3,267.90 : x
  2. Step 2: Convert to fraction form
    5,751.90/7,937.62 = 3,267.90/x
  3. Step 3: Cross multiply
    5,751.90x = 7,937.62 × 3,267.90
  4. Step 4: Simplify right side
    5,751.90x = 25,939,348.40
  5. Step 5: Solve for x
    x = 25,939,348.40/5,751.90
  6. Step 6: Final answer
    x = 4,509.70

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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.