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Finding the Fourth Proportional to 56,648.34, 84,972.60 and 17,205.72

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Solution

The fourth proportional to 56,648.34, 84,972.60 and 17,205.72 is: 25,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,648.34 : 84,972.60 = 17,205.72 : x
  2. Step 2: Convert to fraction form
    56,648.34/84,972.60 = 17,205.72/x
  3. Step 3: Cross multiply
    56,648.34x = 84,972.60 × 17,205.72
  4. Step 4: Simplify right side
    56,648.34x = 1,462,014,763.27
  5. Step 5: Solve for x
    x = 1,462,014,763.27/56,648.34
  6. Step 6: Final answer
    x = 25,808.61

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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.