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Finding the Fourth Proportional to 7,326.86, 10,993.05 and 4,407.21

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Solution

The fourth proportional to 7,326.86, 10,993.05 and 4,407.21 is: 6,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.86 : 10,993.05 = 4,407.21 : x
  2. Step 2: Convert to fraction form
    7,326.86/10,993.05 = 4,407.21/x
  3. Step 3: Cross multiply
    7,326.86x = 10,993.05 × 4,407.21
  4. Step 4: Simplify right side
    7,326.86x = 48,448,679.89
  5. Step 5: Solve for x
    x = 48,448,679.89/7,326.86
  6. Step 6: Final answer
    x = 6,612.48

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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.