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Finding the Fourth Proportional to 56,700, 85,025.43 and 17,247.96

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Solution

The fourth proportional to 56,700, 85,025.43 and 17,247.96 is: 25,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,700 : 85,025.43 = 17,247.96 : x
  2. Step 2: Convert to fraction form
    56,700/85,025.43 = 17,247.96/x
  3. Step 3: Cross multiply
    56,700x = 85,025.43 × 17,247.96
  4. Step 4: Simplify right side
    56,700x = 1,466,515,215.62
  5. Step 5: Solve for x
    x = 1,466,515,215.62/56,700
  6. Step 6: Final answer
    x = 25,864.47

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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.