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Finding the Fourth Proportional to 18,706.75, 25,827.46 and 14,450.40

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Solution

The fourth proportional to 18,706.75, 25,827.46 and 14,450.40 is: 19,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.75 : 25,827.46 = 14,450.40 : x
  2. Step 2: Convert to fraction form
    18,706.75/25,827.46 = 14,450.40/x
  3. Step 3: Cross multiply
    18,706.75x = 25,827.46 × 14,450.40
  4. Step 4: Simplify right side
    18,706.75x = 373,217,091.86
  5. Step 5: Solve for x
    x = 373,217,091.86/18,706.75
  6. Step 6: Final answer
    x = 19,950.93

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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.