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Finding the Fourth Proportional to 6,673.86, 9,211.05 and 4,021.47

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Solution

The fourth proportional to 6,673.86, 9,211.05 and 4,021.47 is: 5,550.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,673.86 : 9,211.05 = 4,021.47 : x
  2. Step 2: Convert to fraction form
    6,673.86/9,211.05 = 4,021.47/x
  3. Step 3: Cross multiply
    6,673.86x = 9,211.05 × 4,021.47
  4. Step 4: Simplify right side
    6,673.86x = 37,041,961.24
  5. Step 5: Solve for x
    x = 37,041,961.24/6,673.86
  6. Step 6: Final answer
    x = 5,550.31

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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.