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Finding the Fourth Proportional to 14,989.50, 22,485.33 and 5,755.50

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Solution

The fourth proportional to 14,989.50, 22,485.33 and 5,755.50 is: 8,633.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.50 : 22,485.33 = 5,755.50 : x
  2. Step 2: Convert to fraction form
    14,989.50/22,485.33 = 5,755.50/x
  3. Step 3: Cross multiply
    14,989.50x = 22,485.33 × 5,755.50
  4. Step 4: Simplify right side
    14,989.50x = 129,414,316.82
  5. Step 5: Solve for x
    x = 129,414,316.82/14,989.50
  6. Step 6: Final answer
    x = 8,633.66

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1.5x scale

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.