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Finding the Fourth Proportional to 66,861.83, 92,270.05 and 36,646.49

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Solution

The fourth proportional to 66,861.83, 92,270.05 and 36,646.49 is: 50,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,861.83 : 92,270.05 = 36,646.49 : x
  2. Step 2: Convert to fraction form
    66,861.83/92,270.05 = 36,646.49/x
  3. Step 3: Cross multiply
    66,861.83x = 92,270.05 × 36,646.49
  4. Step 4: Simplify right side
    66,861.83x = 3,381,372,911.66
  5. Step 5: Solve for x
    x = 3,381,372,911.66/66,861.83
  6. Step 6: Final answer
    x = 50,572.55

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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.