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Finding the Fourth Proportional to 7,679.74, 10,598.04 and 4,322.74

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Solution

The fourth proportional to 7,679.74, 10,598.04 and 4,322.74 is: 5,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.74 : 10,598.04 = 4,322.74 : x
  2. Step 2: Convert to fraction form
    7,679.74/10,598.04 = 4,322.74/x
  3. Step 3: Cross multiply
    7,679.74x = 10,598.04 × 4,322.74
  4. Step 4: Simplify right side
    7,679.74x = 45,812,571.43
  5. Step 5: Solve for x
    x = 45,812,571.43/7,679.74
  6. Step 6: Final answer
    x = 5,965.38

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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.