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Finding the Fourth Proportional to 66,667.48, 92,003.98 and 36,451

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Solution

The fourth proportional to 66,667.48, 92,003.98 and 36,451 is: 50,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667.48 : 92,003.98 = 36,451 : x
  2. Step 2: Convert to fraction form
    66,667.48/92,003.98 = 36,451/x
  3. Step 3: Cross multiply
    66,667.48x = 92,003.98 × 36,451
  4. Step 4: Simplify right side
    66,667.48x = 3,353,637,074.98
  5. Step 5: Solve for x
    x = 3,353,637,074.98/66,667.48
  6. Step 6: Final answer
    x = 50,303.94

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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.