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Finding the Fourth Proportional to 29,670.55, 40,943.77 and 16,239.22

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Solution

The fourth proportional to 29,670.55, 40,943.77 and 16,239.22 is: 22,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,670.55 : 40,943.77 = 16,239.22 : x
  2. Step 2: Convert to fraction form
    29,670.55/40,943.77 = 16,239.22/x
  3. Step 3: Cross multiply
    29,670.55x = 40,943.77 × 16,239.22
  4. Step 4: Simplify right side
    29,670.55x = 664,894,745.70
  5. Step 5: Solve for x
    x = 664,894,745.70/29,670.55
  6. Step 6: Final answer
    x = 22,409.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.