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Finding the Fourth Proportional to 85,827.66, 118,449.12 and 47,599.17

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Solution

The fourth proportional to 85,827.66, 118,449.12 and 47,599.17 is: 65,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,827.66 : 118,449.12 = 47,599.17 : x
  2. Step 2: Convert to fraction form
    85,827.66/118,449.12 = 47,599.17/x
  3. Step 3: Cross multiply
    85,827.66x = 118,449.12 × 47,599.17
  4. Step 4: Simplify right side
    85,827.66x = 5,638,079,799.23
  5. Step 5: Solve for x
    x = 5,638,079,799.23/85,827.66
  6. Step 6: Final answer
    x = 65,690.71

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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.