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Finding the Fourth Proportional to 56,782.37, 85,186.85 and 17,339.48

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Solution

The fourth proportional to 56,782.37, 85,186.85 and 17,339.48 is: 26,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,782.37 : 85,186.85 = 17,339.48 : x
  2. Step 2: Convert to fraction form
    56,782.37/85,186.85 = 17,339.48/x
  3. Step 3: Cross multiply
    56,782.37x = 85,186.85 × 17,339.48
  4. Step 4: Simplify right side
    56,782.37x = 1,477,095,169.21
  5. Step 5: Solve for x
    x = 1,477,095,169.21/56,782.37
  6. Step 6: Final answer
    x = 26,013.27

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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.