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Finding the Fourth Proportional to 61,109.79, 91,660.59 and 16,736.91

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Solution

The fourth proportional to 61,109.79, 91,660.59 and 16,736.91 is: 25,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,109.79 : 91,660.59 = 16,736.91 : x
  2. Step 2: Convert to fraction form
    61,109.79/91,660.59 = 16,736.91/x
  3. Step 3: Cross multiply
    61,109.79x = 91,660.59 × 16,736.91
  4. Step 4: Simplify right side
    61,109.79x = 1,534,115,045.38
  5. Step 5: Solve for x
    x = 1,534,115,045.38/61,109.79
  6. Step 6: Final answer
    x = 25,104.24

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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.