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Finding the Fourth Proportional to 6,307.44, 8,700.84 and 3,949.08

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Solution

The fourth proportional to 6,307.44, 8,700.84 and 3,949.08 is: 5,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.44 : 8,700.84 = 3,949.08 : x
  2. Step 2: Convert to fraction form
    6,307.44/8,700.84 = 3,949.08/x
  3. Step 3: Cross multiply
    6,307.44x = 8,700.84 × 3,949.08
  4. Step 4: Simplify right side
    6,307.44x = 34,360,313.23
  5. Step 5: Solve for x
    x = 34,360,313.23/6,307.44
  6. Step 6: Final answer
    x = 5,447.58

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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.