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Finding the Fourth Proportional to 14,819.06, 20,457.74 and 11,454.27

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Solution

The fourth proportional to 14,819.06, 20,457.74 and 11,454.27 is: 15,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.06 : 20,457.74 = 11,454.27 : x
  2. Step 2: Convert to fraction form
    14,819.06/20,457.74 = 11,454.27/x
  3. Step 3: Cross multiply
    14,819.06x = 20,457.74 × 11,454.27
  4. Step 4: Simplify right side
    14,819.06x = 234,328,477.55
  5. Step 5: Solve for x
    x = 234,328,477.55/14,819.06
  6. Step 6: Final answer
    x = 15,812.64

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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.