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Finding the Fourth Proportional to 9,333.28, 12,880.82 and 6,971.32

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Solution

The fourth proportional to 9,333.28, 12,880.82 and 6,971.32 is: 9,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.28 : 12,880.82 = 6,971.32 : x
  2. Step 2: Convert to fraction form
    9,333.28/12,880.82 = 6,971.32/x
  3. Step 3: Cross multiply
    9,333.28x = 12,880.82 × 6,971.32
  4. Step 4: Simplify right side
    9,333.28x = 89,796,318.08
  5. Step 5: Solve for x
    x = 89,796,318.08/9,333.28
  6. Step 6: Final answer
    x = 9,621.09

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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.