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Finding the Fourth Proportional to 5,241.37, 7,862.08 and 4,978.59

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Solution

The fourth proportional to 5,241.37, 7,862.08 and 4,978.59 is: 7,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.37 : 7,862.08 = 4,978.59 : x
  2. Step 2: Convert to fraction form
    5,241.37/7,862.08 = 4,978.59/x
  3. Step 3: Cross multiply
    5,241.37x = 7,862.08 × 4,978.59
  4. Step 4: Simplify right side
    5,241.37x = 39,142,072.87
  5. Step 5: Solve for x
    x = 39,142,072.87/5,241.37
  6. Step 6: Final answer
    x = 7,467.91

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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.