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Finding the Fourth Proportional to 66,802.91, 92,165.12 and 38,101.84

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Solution

The fourth proportional to 66,802.91, 92,165.12 and 38,101.84 is: 52,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802.91 : 92,165.12 = 38,101.84 : x
  2. Step 2: Convert to fraction form
    66,802.91/92,165.12 = 38,101.84/x
  3. Step 3: Cross multiply
    66,802.91x = 92,165.12 × 38,101.84
  4. Step 4: Simplify right side
    66,802.91x = 3,511,660,520.66
  5. Step 5: Solve for x
    x = 3,511,660,520.66/66,802.91
  6. Step 6: Final answer
    x = 52,567.48

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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.