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Finding the Fourth Proportional to 61,029.88, 91,530.06 and 16,656.86

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Solution

The fourth proportional to 61,029.88, 91,530.06 and 16,656.86 is: 24,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,029.88 : 91,530.06 = 16,656.86 : x
  2. Step 2: Convert to fraction form
    61,029.88/91,530.06 = 16,656.86/x
  3. Step 3: Cross multiply
    61,029.88x = 91,530.06 × 16,656.86
  4. Step 4: Simplify right side
    61,029.88x = 1,524,603,395.21
  5. Step 5: Solve for x
    x = 1,524,603,395.21/61,029.88
  6. Step 6: Final answer
    x = 24,981.26

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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.