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Finding the Fourth Proportional to 6,242.82, 8,612.10 and 4,561.44

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Solution

The fourth proportional to 6,242.82, 8,612.10 and 4,561.44 is: 6,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.82 : 8,612.10 = 4,561.44 : x
  2. Step 2: Convert to fraction form
    6,242.82/8,612.10 = 4,561.44/x
  3. Step 3: Cross multiply
    6,242.82x = 8,612.10 × 4,561.44
  4. Step 4: Simplify right side
    6,242.82x = 39,283,577.42
  5. Step 5: Solve for x
    x = 39,283,577.42/6,242.82
  6. Step 6: Final answer
    x = 6,292.60

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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.