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Finding the Fourth Proportional to 9,287.64, 12,816.94 and 5,095.88

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Solution

The fourth proportional to 9,287.64, 12,816.94 and 5,095.88 is: 7,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.64 : 12,816.94 = 5,095.88 : x
  2. Step 2: Convert to fraction form
    9,287.64/12,816.94 = 5,095.88/x
  3. Step 3: Cross multiply
    9,287.64x = 12,816.94 × 5,095.88
  4. Step 4: Simplify right side
    9,287.64x = 65,313,588.21
  5. Step 5: Solve for x
    x = 65,313,588.21/9,287.64
  6. Step 6: Final answer
    x = 7,032.31

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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.