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Finding the Fourth Proportional to 56,810, 85,198.68 and 17,357.84

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Solution

The fourth proportional to 56,810, 85,198.68 and 17,357.84 is: 26,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,810 : 85,198.68 = 17,357.84 : x
  2. Step 2: Convert to fraction form
    56,810/85,198.68 = 17,357.84/x
  3. Step 3: Cross multiply
    56,810x = 85,198.68 × 17,357.84
  4. Step 4: Simplify right side
    56,810x = 1,478,865,055.65
  5. Step 5: Solve for x
    x = 1,478,865,055.65/56,810
  6. Step 6: Final answer
    x = 26,031.77

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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.