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Finding the Fourth Proportional to 56,898.72, 85,320 and 17,446.32

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Solution

The fourth proportional to 56,898.72, 85,320 and 17,446.32 is: 26,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,898.72 : 85,320 = 17,446.32 : x
  2. Step 2: Convert to fraction form
    56,898.72/85,320 = 17,446.32/x
  3. Step 3: Cross multiply
    56,898.72x = 85,320 × 17,446.32
  4. Step 4: Simplify right side
    56,898.72x = 1,488,520,022.40
  5. Step 5: Solve for x
    x = 1,488,520,022.40/56,898.72
  6. Step 6: Final answer
    x = 26,160.87

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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.