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Finding the Fourth Proportional to 6,270.79, 8,649.78 and 4,035.58

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Solution

The fourth proportional to 6,270.79, 8,649.78 and 4,035.58 is: 5,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.79 : 8,649.78 = 4,035.58 : x
  2. Step 2: Convert to fraction form
    6,270.79/8,649.78 = 4,035.58/x
  3. Step 3: Cross multiply
    6,270.79x = 8,649.78 × 4,035.58
  4. Step 4: Simplify right side
    6,270.79x = 34,906,879.17
  5. Step 5: Solve for x
    x = 34,906,879.17/6,270.79
  6. Step 6: Final answer
    x = 5,566.58

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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.