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Finding the Fourth Proportional to 75,282.39, 103,889.67 and 41,748.39

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Solution

The fourth proportional to 75,282.39, 103,889.67 and 41,748.39 is: 57,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,282.39 : 103,889.67 = 41,748.39 : x
  2. Step 2: Convert to fraction form
    75,282.39/103,889.67 = 41,748.39/x
  3. Step 3: Cross multiply
    75,282.39x = 103,889.67 × 41,748.39
  4. Step 4: Simplify right side
    75,282.39x = 4,337,226,460.13
  5. Step 5: Solve for x
    x = 4,337,226,460.13/75,282.39
  6. Step 6: Final answer
    x = 57,612.76

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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.