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Finding the Fourth Proportional to 14,003.10, 21,004.65 and 12,593.70

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Solution

The fourth proportional to 14,003.10, 21,004.65 and 12,593.70 is: 18,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.10 : 21,004.65 = 12,593.70 : x
  2. Step 2: Convert to fraction form
    14,003.10/21,004.65 = 12,593.70/x
  3. Step 3: Cross multiply
    14,003.10x = 21,004.65 × 12,593.70
  4. Step 4: Simplify right side
    14,003.10x = 264,526,260.71
  5. Step 5: Solve for x
    x = 264,526,260.71/14,003.10
  6. Step 6: Final answer
    x = 18,890.55

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Similar ratio
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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.