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Finding the Fourth Proportional to 14,665.66, 20,239.00 and 8,292.48

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Solution

The fourth proportional to 14,665.66, 20,239.00 and 8,292.48 is: 11,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.66 : 20,239.00 = 8,292.48 : x
  2. Step 2: Convert to fraction form
    14,665.66/20,239.00 = 8,292.48/x
  3. Step 3: Cross multiply
    14,665.66x = 20,239.00 × 8,292.48
  4. Step 4: Simplify right side
    14,665.66x = 167,831,406.09
  5. Step 5: Solve for x
    x = 167,831,406.09/14,665.66
  6. Step 6: Final answer
    x = 11,443.84

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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.