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Finding the Fourth Proportional to 7,755.64, 10,703.82 and 4,969.24

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Solution

The fourth proportional to 7,755.64, 10,703.82 and 4,969.24 is: 6,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.64 : 10,703.82 = 4,969.24 : x
  2. Step 2: Convert to fraction form
    7,755.64/10,703.82 = 4,969.24/x
  3. Step 3: Cross multiply
    7,755.64x = 10,703.82 × 4,969.24
  4. Step 4: Simplify right side
    7,755.64x = 53,189,850.50
  5. Step 5: Solve for x
    x = 53,189,850.50/7,755.64
  6. Step 6: Final answer
    x = 6,858.22

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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.