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Finding the Fourth Proportional to 8,660.91, 11,952.02 and 4,681.99

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Solution

The fourth proportional to 8,660.91, 11,952.02 and 4,681.99 is: 6,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.91 : 11,952.02 = 4,681.99 : x
  2. Step 2: Convert to fraction form
    8,660.91/11,952.02 = 4,681.99/x
  3. Step 3: Cross multiply
    8,660.91x = 11,952.02 × 4,681.99
  4. Step 4: Simplify right side
    8,660.91x = 55,959,238.12
  5. Step 5: Solve for x
    x = 55,959,238.12/8,660.91
  6. Step 6: Final answer
    x = 6,461.13

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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.