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Finding the Fourth Proportional to 14,899.10, 20,561.86 and 9,234.96

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Solution

The fourth proportional to 14,899.10, 20,561.86 and 9,234.96 is: 12,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.10 : 20,561.86 = 9,234.96 : x
  2. Step 2: Convert to fraction form
    14,899.10/20,561.86 = 9,234.96/x
  3. Step 3: Cross multiply
    14,899.10x = 20,561.86 × 9,234.96
  4. Step 4: Simplify right side
    14,899.10x = 189,887,954.63
  5. Step 5: Solve for x
    x = 189,887,954.63/14,899.10
  6. Step 6: Final answer
    x = 12,744.93

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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.