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Finding the Fourth Proportional to 8,976.15, 13,464.81 and 7,329.15

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Solution

The fourth proportional to 8,976.15, 13,464.81 and 7,329.15 is: 10,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.15 : 13,464.81 = 7,329.15 : x
  2. Step 2: Convert to fraction form
    8,976.15/13,464.81 = 7,329.15/x
  3. Step 3: Cross multiply
    8,976.15x = 13,464.81 × 7,329.15
  4. Step 4: Simplify right side
    8,976.15x = 98,685,612.21
  5. Step 5: Solve for x
    x = 98,685,612.21/8,976.15
  6. Step 6: Final answer
    x = 10,994.20

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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.