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Finding the Fourth Proportional to 61,209.59, 91,816.68 and 16,836.44

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Solution

The fourth proportional to 61,209.59, 91,816.68 and 16,836.44 is: 25,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209.59 : 91,816.68 = 16,836.44 : x
  2. Step 2: Convert to fraction form
    61,209.59/91,816.68 = 16,836.44/x
  3. Step 3: Cross multiply
    61,209.59x = 91,816.68 × 16,836.44
  4. Step 4: Simplify right side
    61,209.59x = 1,545,866,023.82
  5. Step 5: Solve for x
    x = 1,545,866,023.82/61,209.59
  6. Step 6: Final answer
    x = 25,255.29

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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.