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Finding the Fourth Proportional to 26,692.50, 36,838.89 and 15,514.50

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Solution

The fourth proportional to 26,692.50, 36,838.89 and 15,514.50 is: 21,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,692.50 : 36,838.89 = 15,514.50 : x
  2. Step 2: Convert to fraction form
    26,692.50/36,838.89 = 15,514.50/x
  3. Step 3: Cross multiply
    26,692.50x = 36,838.89 × 15,514.50
  4. Step 4: Simplify right side
    26,692.50x = 571,536,958.91
  5. Step 5: Solve for x
    x = 571,536,958.91/26,692.50
  6. Step 6: Final answer
    x = 21,411.89

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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.