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Finding the Fourth Proportional to 61,101.12, 91,651.71 and 16,728.24

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Solution

The fourth proportional to 61,101.12, 91,651.71 and 16,728.24 is: 25,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,101.12 : 91,651.71 = 16,728.24 : x
  2. Step 2: Convert to fraction form
    61,101.12/91,651.71 = 16,728.24/x
  3. Step 3: Cross multiply
    61,101.12x = 91,651.71 × 16,728.24
  4. Step 4: Simplify right side
    61,101.12x = 1,533,171,801.29
  5. Step 5: Solve for x
    x = 1,533,171,801.29/61,101.12
  6. Step 6: Final answer
    x = 25,092.37

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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.