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Finding the Fourth Proportional to 16,576.48, 22,869.96 and 9,405.64

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Solution

The fourth proportional to 16,576.48, 22,869.96 and 9,405.64 is: 12,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,576.48 : 22,869.96 = 9,405.64 : x
  2. Step 2: Convert to fraction form
    16,576.48/22,869.96 = 9,405.64/x
  3. Step 3: Cross multiply
    16,576.48x = 22,869.96 × 9,405.64
  4. Step 4: Simplify right side
    16,576.48x = 215,106,610.57
  5. Step 5: Solve for x
    x = 215,106,610.57/16,576.48
  6. Step 6: Final answer
    x = 12,976.62

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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.