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Finding the Fourth Proportional to 9,900.92, 14,815.99 and 8,600.00

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Solution

The fourth proportional to 9,900.92, 14,815.99 and 8,600.00 is: 12,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.92 : 14,815.99 = 8,600.00 : x
  2. Step 2: Convert to fraction form
    9,900.92/14,815.99 = 8,600.00/x
  3. Step 3: Cross multiply
    9,900.92x = 14,815.99 × 8,600.00
  4. Step 4: Simplify right side
    9,900.92x = 127,417,502.80
  5. Step 5: Solve for x
    x = 127,417,502.80/9,900.92
  6. Step 6: Final answer
    x = 12,869.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.