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Finding the Fourth Proportional to 66,723.80, 92,079.98 and 36,511.76

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Solution

The fourth proportional to 66,723.80, 92,079.98 and 36,511.76 is: 50,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,723.80 : 92,079.98 = 36,511.76 : x
  2. Step 2: Convert to fraction form
    66,723.80/92,079.98 = 36,511.76/x
  3. Step 3: Cross multiply
    66,723.80x = 92,079.98 × 36,511.76
  4. Step 4: Simplify right side
    66,723.80x = 3,362,002,130.56
  5. Step 5: Solve for x
    x = 3,362,002,130.56/66,723.80
  6. Step 6: Final answer
    x = 50,386.85

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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.