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Finding the Fourth Proportional to 75,663.60, 104,418.24 and 41,675.64

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Solution

The fourth proportional to 75,663.60, 104,418.24 and 41,675.64 is: 57,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,663.60 : 104,418.24 = 41,675.64 : x
  2. Step 2: Convert to fraction form
    75,663.60/104,418.24 = 41,675.64/x
  3. Step 3: Cross multiply
    75,663.60x = 104,418.24 × 41,675.64
  4. Step 4: Simplify right side
    75,663.60x = 4,351,696,979.67
  5. Step 5: Solve for x
    x = 4,351,696,979.67/75,663.60
  6. Step 6: Final answer
    x = 57,513.74

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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.