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Finding the Fourth Proportional to 4,995.80, 7,493.70 and 3,699.80

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Solution

The fourth proportional to 4,995.80, 7,493.70 and 3,699.80 is: 5,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.80 : 7,493.70 = 3,699.80 : x
  2. Step 2: Convert to fraction form
    4,995.80/7,493.70 = 3,699.80/x
  3. Step 3: Cross multiply
    4,995.80x = 7,493.70 × 3,699.80
  4. Step 4: Simplify right side
    4,995.80x = 27,725,191.26
  5. Step 5: Solve for x
    x = 27,725,191.26/4,995.80
  6. Step 6: Final answer
    x = 5,549.70

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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.