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Finding the Fourth Proportional to 58,858.94, 80,138.67 and 58,672.11

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Solution

The fourth proportional to 58,858.94, 80,138.67 and 58,672.11 is: 79,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,858.94 : 80,138.67 = 58,672.11 : x
  2. Step 2: Convert to fraction form
    58,858.94/80,138.67 = 58,672.11/x
  3. Step 3: Cross multiply
    58,858.94x = 80,138.67 × 58,672.11
  4. Step 4: Simplify right side
    58,858.94x = 4,701,904,265.82
  5. Step 5: Solve for x
    x = 4,701,904,265.82/58,858.94
  6. Step 6: Final answer
    x = 79,884.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.