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Finding the Fourth Proportional to 14,091.91, 19,445.54 and 8,425.55

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Solution

The fourth proportional to 14,091.91, 19,445.54 and 8,425.55 is: 11,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.91 : 19,445.54 = 8,425.55 : x
  2. Step 2: Convert to fraction form
    14,091.91/19,445.54 = 8,425.55/x
  3. Step 3: Cross multiply
    14,091.91x = 19,445.54 × 8,425.55
  4. Step 4: Simplify right side
    14,091.91x = 163,839,376.03
  5. Step 5: Solve for x
    x = 163,839,376.03/14,091.91
  6. Step 6: Final answer
    x = 11,626.49

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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.