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Finding the Fourth Proportional to 16,239.64, 22,411.74 and 9,163.48

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Solution

The fourth proportional to 16,239.64, 22,411.74 and 9,163.48 is: 12,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.64 : 22,411.74 = 9,163.48 : x
  2. Step 2: Convert to fraction form
    16,239.64/22,411.74 = 9,163.48/x
  3. Step 3: Cross multiply
    16,239.64x = 22,411.74 × 9,163.48
  4. Step 4: Simplify right side
    16,239.64x = 205,369,531.26
  5. Step 5: Solve for x
    x = 205,369,531.26/16,239.64
  6. Step 6: Final answer
    x = 12,646.19

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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.