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Finding the Fourth Proportional to 26,702.96, 40,063.08 and 18,806

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Solution

The fourth proportional to 26,702.96, 40,063.08 and 18,806 is: 28,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,702.96 : 40,063.08 = 18,806 : x
  2. Step 2: Convert to fraction form
    26,702.96/40,063.08 = 18,806/x
  3. Step 3: Cross multiply
    26,702.96x = 40,063.08 × 18,806
  4. Step 4: Simplify right side
    26,702.96x = 753,426,282.48
  5. Step 5: Solve for x
    x = 753,426,282.48/26,702.96
  6. Step 6: Final answer
    x = 28,215.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.