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Finding the Fourth Proportional to 44,491.74, 66,737.79 and 12,903.72

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Solution

The fourth proportional to 44,491.74, 66,737.79 and 12,903.72 is: 19,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,491.74 : 66,737.79 = 12,903.72 : x
  2. Step 2: Convert to fraction form
    44,491.74/66,737.79 = 12,903.72/x
  3. Step 3: Cross multiply
    44,491.74x = 66,737.79 × 12,903.72
  4. Step 4: Simplify right side
    44,491.74x = 861,165,755.58
  5. Step 5: Solve for x
    x = 861,165,755.58/44,491.74
  6. Step 6: Final answer
    x = 19,355.63

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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.