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Finding the Fourth Proportional to 5,755.79, 8,622.56 and 4,820.24

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Solution

The fourth proportional to 5,755.79, 8,622.56 and 4,820.24 is: 7,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.79 : 8,622.56 = 4,820.24 : x
  2. Step 2: Convert to fraction form
    5,755.79/8,622.56 = 4,820.24/x
  3. Step 3: Cross multiply
    5,755.79x = 8,622.56 × 4,820.24
  4. Step 4: Simplify right side
    5,755.79x = 41,562,741.40
  5. Step 5: Solve for x
    x = 41,562,741.40/5,755.79
  6. Step 6: Final answer
    x = 7,221.04

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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.