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Finding the Fourth Proportional to 61,085.62, 91,628.43 and 16,710.58

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Solution

The fourth proportional to 61,085.62, 91,628.43 and 16,710.58 is: 25,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.62 : 91,628.43 = 16,710.58 : x
  2. Step 2: Convert to fraction form
    61,085.62/91,628.43 = 16,710.58/x
  3. Step 3: Cross multiply
    61,085.62x = 91,628.43 × 16,710.58
  4. Step 4: Simplify right side
    61,085.62x = 1,531,164,209.79
  5. Step 5: Solve for x
    x = 1,531,164,209.79/61,085.62
  6. Step 6: Final answer
    x = 25,065.87

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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.