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Finding the Fourth Proportional to 7,317.86, 10,979.52 and 4,398.26

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Solution

The fourth proportional to 7,317.86, 10,979.52 and 4,398.26 is: 6,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.86 : 10,979.52 = 4,398.26 : x
  2. Step 2: Convert to fraction form
    7,317.86/10,979.52 = 4,398.26/x
  3. Step 3: Cross multiply
    7,317.86x = 10,979.52 × 4,398.26
  4. Step 4: Simplify right side
    7,317.86x = 48,290,783.64
  5. Step 5: Solve for x
    x = 48,290,783.64/7,317.86
  6. Step 6: Final answer
    x = 6,599.03

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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.