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Finding the Fourth Proportional to 75,090.59, 112,618.13 and 27,679.92

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Solution

The fourth proportional to 75,090.59, 112,618.13 and 27,679.92 is: 41,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.59 : 112,618.13 = 27,679.92 : x
  2. Step 2: Convert to fraction form
    75,090.59/112,618.13 = 27,679.92/x
  3. Step 3: Cross multiply
    75,090.59x = 112,618.13 × 27,679.92
  4. Step 4: Simplify right side
    75,090.59x = 3,117,260,690.55
  5. Step 5: Solve for x
    x = 3,117,260,690.55/75,090.59
  6. Step 6: Final answer
    x = 41,513.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.