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Finding the Fourth Proportional to 45,834.49, 68,751.18 and 12,554.53

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Solution

The fourth proportional to 45,834.49, 68,751.18 and 12,554.53 is: 18,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,834.49 : 68,751.18 = 12,554.53 : x
  2. Step 2: Convert to fraction form
    45,834.49/68,751.18 = 12,554.53/x
  3. Step 3: Cross multiply
    45,834.49x = 68,751.18 × 12,554.53
  4. Step 4: Simplify right side
    45,834.49x = 863,138,751.85
  5. Step 5: Solve for x
    x = 863,138,751.85/45,834.49
  6. Step 6: Final answer
    x = 18,831.64

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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.