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Finding the Fourth Proportional to 66,669.69, 92,012.64 and 37,999.66

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Solution

The fourth proportional to 66,669.69, 92,012.64 and 37,999.66 is: 52,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,669.69 : 92,012.64 = 37,999.66 : x
  2. Step 2: Convert to fraction form
    66,669.69/92,012.64 = 37,999.66/x
  3. Step 3: Cross multiply
    66,669.69x = 92,012.64 × 37,999.66
  4. Step 4: Simplify right side
    66,669.69x = 3,496,449,035.70
  5. Step 5: Solve for x
    x = 3,496,449,035.70/66,669.69
  6. Step 6: Final answer
    x = 52,444.36

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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.