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Finding the Fourth Proportional to 19,457.19, 29,181.69 and 8,369.10

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Solution

The fourth proportional to 19,457.19, 29,181.69 and 8,369.10 is: 12,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.19 : 29,181.69 = 8,369.10 : x
  2. Step 2: Convert to fraction form
    19,457.19/29,181.69 = 8,369.10/x
  3. Step 3: Cross multiply
    19,457.19x = 29,181.69 × 8,369.10
  4. Step 4: Simplify right side
    19,457.19x = 244,224,481.78
  5. Step 5: Solve for x
    x = 244,224,481.78/19,457.19
  6. Step 6: Final answer
    x = 12,551.89

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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.