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Finding the Fourth Proportional to 3,805.60, 5,700.30 and 3,076.60

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Solution

The fourth proportional to 3,805.60, 5,700.30 and 3,076.60 is: 4,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.60 : 5,700.30 = 3,076.60 : x
  2. Step 2: Convert to fraction form
    3,805.60/5,700.30 = 3,076.60/x
  3. Step 3: Cross multiply
    3,805.60x = 5,700.30 × 3,076.60
  4. Step 4: Simplify right side
    3,805.60x = 17,537,542.98
  5. Step 5: Solve for x
    x = 17,537,542.98/3,805.60
  6. Step 6: Final answer
    x = 4,608.35

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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.