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Finding the Fourth Proportional to 9,336.65, 12,886.07 and 5,979.29

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Solution

The fourth proportional to 9,336.65, 12,886.07 and 5,979.29 is: 8,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,336.65 : 12,886.07 = 5,979.29 : x
  2. Step 2: Convert to fraction form
    9,336.65/12,886.07 = 5,979.29/x
  3. Step 3: Cross multiply
    9,336.65x = 12,886.07 × 5,979.29
  4. Step 4: Simplify right side
    9,336.65x = 77,049,455.16
  5. Step 5: Solve for x
    x = 77,049,455.16/9,336.65
  6. Step 6: Final answer
    x = 8,252.37

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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.