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Finding the Fourth Proportional to 56,668.59, 85,005.92 and 17,222.70

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Solution

The fourth proportional to 56,668.59, 85,005.92 and 17,222.70 is: 25,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.59 : 85,005.92 = 17,222.70 : x
  2. Step 2: Convert to fraction form
    56,668.59/85,005.92 = 17,222.70/x
  3. Step 3: Cross multiply
    56,668.59x = 85,005.92 × 17,222.70
  4. Step 4: Simplify right side
    56,668.59x = 1,464,031,458.38
  5. Step 5: Solve for x
    x = 1,464,031,458.38/56,668.59
  6. Step 6: Final answer
    x = 25,834.97

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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.