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Finding the Fourth Proportional to 66,995.66, 92,455.48 and 38,317.96

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Solution

The fourth proportional to 66,995.66, 92,455.48 and 38,317.96 is: 52,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,995.66 : 92,455.48 = 38,317.96 : x
  2. Step 2: Convert to fraction form
    66,995.66/92,455.48 = 38,317.96/x
  3. Step 3: Cross multiply
    66,995.66x = 92,455.48 × 38,317.96
  4. Step 4: Simplify right side
    66,995.66x = 3,542,705,332.35
  5. Step 5: Solve for x
    x = 3,542,705,332.35/66,995.66
  6. Step 6: Final answer
    x = 52,879.63

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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.