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Finding the Fourth Proportional to 58,691.79, 80,930.48 and 43,612.42

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Solution

The fourth proportional to 58,691.79, 80,930.48 and 43,612.42 is: 60,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,691.79 : 80,930.48 = 43,612.42 : x
  2. Step 2: Convert to fraction form
    58,691.79/80,930.48 = 43,612.42/x
  3. Step 3: Cross multiply
    58,691.79x = 80,930.48 × 43,612.42
  4. Step 4: Simplify right side
    58,691.79x = 3,529,573,866.50
  5. Step 5: Solve for x
    x = 3,529,573,866.50/58,691.79
  6. Step 6: Final answer
    x = 60,137.44

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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.