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Finding the Fourth Proportional to 14,819.15, 20,457.87 and 11,454.37

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Solution

The fourth proportional to 14,819.15, 20,457.87 and 11,454.37 is: 15,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.15 : 20,457.87 = 11,454.37 : x
  2. Step 2: Convert to fraction form
    14,819.15/20,457.87 = 11,454.37/x
  3. Step 3: Cross multiply
    14,819.15x = 20,457.87 × 11,454.37
  4. Step 4: Simplify right side
    14,819.15x = 234,331,918.29
  5. Step 5: Solve for x
    x = 234,331,918.29/14,819.15
  6. Step 6: Final answer
    x = 15,812.77

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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.