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Finding the Fourth Proportional to 7,641.71, 10,545.44 and 4,284.52

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Solution

The fourth proportional to 7,641.71, 10,545.44 and 4,284.52 is: 5,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.71 : 10,545.44 = 4,284.52 : x
  2. Step 2: Convert to fraction form
    7,641.71/10,545.44 = 4,284.52/x
  3. Step 3: Cross multiply
    7,641.71x = 10,545.44 × 4,284.52
  4. Step 4: Simplify right side
    7,641.71x = 45,182,100.80
  5. Step 5: Solve for x
    x = 45,182,100.80/7,641.71
  6. Step 6: Final answer
    x = 5,912.57

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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.