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Finding the Fourth Proportional to 10,695.64, 14,760.21 and 5,979.82

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Solution

The fourth proportional to 10,695.64, 14,760.21 and 5,979.82 is: 8,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,695.64 : 14,760.21 = 5,979.82 : x
  2. Step 2: Convert to fraction form
    10,695.64/14,760.21 = 5,979.82/x
  3. Step 3: Cross multiply
    10,695.64x = 14,760.21 × 5,979.82
  4. Step 4: Simplify right side
    10,695.64x = 88,263,398.96
  5. Step 5: Solve for x
    x = 88,263,398.96/10,695.64
  6. Step 6: Final answer
    x = 8,252.28

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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.