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Finding the Fourth Proportional to 14,245.70, 21,368.55 and 14,051.30

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Solution

The fourth proportional to 14,245.70, 21,368.55 and 14,051.30 is: 21,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.70 : 21,368.55 = 14,051.30 : x
  2. Step 2: Convert to fraction form
    14,245.70/21,368.55 = 14,051.30/x
  3. Step 3: Cross multiply
    14,245.70x = 21,368.55 × 14,051.30
  4. Step 4: Simplify right side
    14,245.70x = 300,255,906.62
  5. Step 5: Solve for x
    x = 300,255,906.62/14,245.70
  6. Step 6: Final answer
    x = 21,076.95

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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.