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Finding the Fourth Proportional to 4,755.70, 7,133.55 and 4,682.80

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Solution

The fourth proportional to 4,755.70, 7,133.55 and 4,682.80 is: 7,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.70 : 7,133.55 = 4,682.80 : x
  2. Step 2: Convert to fraction form
    4,755.70/7,133.55 = 4,682.80/x
  3. Step 3: Cross multiply
    4,755.70x = 7,133.55 × 4,682.80
  4. Step 4: Simplify right side
    4,755.70x = 33,404,987.94
  5. Step 5: Solve for x
    x = 33,404,987.94/4,755.70
  6. Step 6: Final answer
    x = 7,024.20

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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.