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Finding the Fourth Proportional to 5,672.94, 8,510.76 and 5,578.79

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Solution

The fourth proportional to 5,672.94, 8,510.76 and 5,578.79 is: 8,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.94 : 8,510.76 = 5,578.79 : x
  2. Step 2: Convert to fraction form
    5,672.94/8,510.76 = 5,578.79/x
  3. Step 3: Cross multiply
    5,672.94x = 8,510.76 × 5,578.79
  4. Step 4: Simplify right side
    5,672.94x = 47,479,700.23
  5. Step 5: Solve for x
    x = 47,479,700.23/5,672.94
  6. Step 6: Final answer
    x = 8,369.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.