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Finding the Fourth Proportional to 62,857.78, 86,743.64 and 36,008.98

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Solution

The fourth proportional to 62,857.78, 86,743.64 and 36,008.98 is: 49,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,857.78 : 86,743.64 = 36,008.98 : x
  2. Step 2: Convert to fraction form
    62,857.78/86,743.64 = 36,008.98/x
  3. Step 3: Cross multiply
    62,857.78x = 86,743.64 × 36,008.98
  4. Step 4: Simplify right side
    62,857.78x = 3,123,549,997.89
  5. Step 5: Solve for x
    x = 3,123,549,997.89/62,857.78
  6. Step 6: Final answer
    x = 49,692.34

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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.