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Finding the Fourth Proportional to 56,707.05, 85,069.73 and 17,254.88

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Solution

The fourth proportional to 56,707.05, 85,069.73 and 17,254.88 is: 25,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,707.05 : 85,069.73 = 17,254.88 : x
  2. Step 2: Convert to fraction form
    56,707.05/85,069.73 = 17,254.88/x
  3. Step 3: Cross multiply
    56,707.05x = 85,069.73 × 17,254.88
  4. Step 4: Simplify right side
    56,707.05x = 1,467,867,982.78
  5. Step 5: Solve for x
    x = 1,467,867,982.78/56,707.05
  6. Step 6: Final answer
    x = 25,885.11

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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.