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Finding the Fourth Proportional to 16,387.68, 22,614.66 and 8,935.68

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Solution

The fourth proportional to 16,387.68, 22,614.66 and 8,935.68 is: 12,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.68 : 22,614.66 = 8,935.68 : x
  2. Step 2: Convert to fraction form
    16,387.68/22,614.66 = 8,935.68/x
  3. Step 3: Cross multiply
    16,387.68x = 22,614.66 × 8,935.68
  4. Step 4: Simplify right side
    16,387.68x = 202,077,365.07
  5. Step 5: Solve for x
    x = 202,077,365.07/16,387.68
  6. Step 6: Final answer
    x = 12,331.05

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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.