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Finding the Fourth Proportional to 18,702.09, 27,916.25 and 16,487.82

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Solution

The fourth proportional to 18,702.09, 27,916.25 and 16,487.82 is: 24,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.09 : 27,916.25 = 16,487.82 : x
  2. Step 2: Convert to fraction form
    18,702.09/27,916.25 = 16,487.82/x
  3. Step 3: Cross multiply
    18,702.09x = 27,916.25 × 16,487.82
  4. Step 4: Simplify right side
    18,702.09x = 460,278,022.64
  5. Step 5: Solve for x
    x = 460,278,022.64/18,702.09
  6. Step 6: Final answer
    x = 24,611.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.