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Finding the Fourth Proportional to 66,996.50, 92,455.34 and 36,783.77

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Solution

The fourth proportional to 66,996.50, 92,455.34 and 36,783.77 is: 50,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,996.50 : 92,455.34 = 36,783.77 : x
  2. Step 2: Convert to fraction form
    66,996.50/92,455.34 = 36,783.77/x
  3. Step 3: Cross multiply
    66,996.50x = 92,455.34 × 36,783.77
  4. Step 4: Simplify right side
    66,996.50x = 3,400,855,315.64
  5. Step 5: Solve for x
    x = 3,400,855,315.64/66,996.50
  6. Step 6: Final answer
    x = 50,761.69

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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.