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Finding the Fourth Proportional to 5,507.48, 7,603.11 and 3,621.80

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Solution

The fourth proportional to 5,507.48, 7,603.11 and 3,621.80 is: 4,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,507.48 : 7,603.11 = 3,621.80 : x
  2. Step 2: Convert to fraction form
    5,507.48/7,603.11 = 3,621.80/x
  3. Step 3: Cross multiply
    5,507.48x = 7,603.11 × 3,621.80
  4. Step 4: Simplify right side
    5,507.48x = 27,536,905.78
  5. Step 5: Solve for x
    x = 27,536,905.78/5,507.48
  6. Step 6: Final answer
    x = 4,999.91

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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.