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Finding the Fourth Proportional to 14,099.01, 19,454.67 and 7,811.79

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Solution

The fourth proportional to 14,099.01, 19,454.67 and 7,811.79 is: 10,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.01 : 19,454.67 = 7,811.79 : x
  2. Step 2: Convert to fraction form
    14,099.01/19,454.67 = 7,811.79/x
  3. Step 3: Cross multiply
    14,099.01x = 19,454.67 × 7,811.79
  4. Step 4: Simplify right side
    14,099.01x = 151,975,796.56
  5. Step 5: Solve for x
    x = 151,975,796.56/14,099.01
  6. Step 6: Final answer
    x = 10,779.18

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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.