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Finding the Fourth Proportional to 6,322.87, 8,729.67 and 5,658.58

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Solution

The fourth proportional to 6,322.87, 8,729.67 and 5,658.58 is: 7,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,322.87 : 8,729.67 = 5,658.58 : x
  2. Step 2: Convert to fraction form
    6,322.87/8,729.67 = 5,658.58/x
  3. Step 3: Cross multiply
    6,322.87x = 8,729.67 × 5,658.58
  4. Step 4: Simplify right side
    6,322.87x = 49,397,536.07
  5. Step 5: Solve for x
    x = 49,397,536.07/6,322.87
  6. Step 6: Final answer
    x = 7,812.52

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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.