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Finding the Fourth Proportional to 14,343.36, 19,795.36 and 8,057.92

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Solution

The fourth proportional to 14,343.36, 19,795.36 and 8,057.92 is: 11,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.36 : 19,795.36 = 8,057.92 : x
  2. Step 2: Convert to fraction form
    14,343.36/19,795.36 = 8,057.92/x
  3. Step 3: Cross multiply
    14,343.36x = 19,795.36 × 8,057.92
  4. Step 4: Simplify right side
    14,343.36x = 159,509,427.25
  5. Step 5: Solve for x
    x = 159,509,427.25/14,343.36
  6. Step 6: Final answer
    x = 11,120.79

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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.