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Finding the Fourth Proportional to 6,436.78, 8,882.22 and 5,966.62

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Solution

The fourth proportional to 6,436.78, 8,882.22 and 5,966.62 is: 8,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.78 : 8,882.22 = 5,966.62 : x
  2. Step 2: Convert to fraction form
    6,436.78/8,882.22 = 5,966.62/x
  3. Step 3: Cross multiply
    6,436.78x = 8,882.22 × 5,966.62
  4. Step 4: Simplify right side
    6,436.78x = 52,996,831.50
  5. Step 5: Solve for x
    x = 52,996,831.50/6,436.78
  6. Step 6: Final answer
    x = 8,233.44

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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.