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Finding the Fourth Proportional to 7,687.94, 10,608.51 and 4,330.67

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Solution

The fourth proportional to 7,687.94, 10,608.51 and 4,330.67 is: 5,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.94 : 10,608.51 = 4,330.67 : x
  2. Step 2: Convert to fraction form
    7,687.94/10,608.51 = 4,330.67/x
  3. Step 3: Cross multiply
    7,687.94x = 10,608.51 × 4,330.67
  4. Step 4: Simplify right side
    7,687.94x = 45,941,956.00
  5. Step 5: Solve for x
    x = 45,941,956.00/7,687.94
  6. Step 6: Final answer
    x = 5,975.85

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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.