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Finding the Fourth Proportional to 60,018.66, 90,028.03 and 15,645.30

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Solution

The fourth proportional to 60,018.66, 90,028.03 and 15,645.30 is: 23,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,018.66 : 90,028.03 = 15,645.30 : x
  2. Step 2: Convert to fraction form
    60,018.66/90,028.03 = 15,645.30/x
  3. Step 3: Cross multiply
    60,018.66x = 90,028.03 × 15,645.30
  4. Step 4: Simplify right side
    60,018.66x = 1,408,515,537.76
  5. Step 5: Solve for x
    x = 1,408,515,537.76/60,018.66
  6. Step 6: Final answer
    x = 23,467.96

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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.