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Finding the Fourth Proportional to 12,008.04, 17,986.94 and 9,655.31

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Solution

The fourth proportional to 12,008.04, 17,986.94 and 9,655.31 is: 14,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.04 : 17,986.94 = 9,655.31 : x
  2. Step 2: Convert to fraction form
    12,008.04/17,986.94 = 9,655.31/x
  3. Step 3: Cross multiply
    12,008.04x = 17,986.94 × 9,655.31
  4. Step 4: Simplify right side
    12,008.04x = 173,669,481.65
  5. Step 5: Solve for x
    x = 173,669,481.65/12,008.04
  6. Step 6: Final answer
    x = 14,462.77

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1.5x scale

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.