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Finding the Fourth Proportional to 6,834.88, 9,458.72 and 6,719.68

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Solution

The fourth proportional to 6,834.88, 9,458.72 and 6,719.68 is: 9,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,834.88 : 9,458.72 = 6,719.68 : x
  2. Step 2: Convert to fraction form
    6,834.88/9,458.72 = 6,719.68/x
  3. Step 3: Cross multiply
    6,834.88x = 9,458.72 × 6,719.68
  4. Step 4: Simplify right side
    6,834.88x = 63,559,571.61
  5. Step 5: Solve for x
    x = 63,559,571.61/6,834.88
  6. Step 6: Final answer
    x = 9,299.30

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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.