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Finding the Fourth Proportional to 14,176.92, 19,562.94 and 7,889.88

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Solution

The fourth proportional to 14,176.92, 19,562.94 and 7,889.88 is: 10,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,176.92 : 19,562.94 = 7,889.88 : x
  2. Step 2: Convert to fraction form
    14,176.92/19,562.94 = 7,889.88/x
  3. Step 3: Cross multiply
    14,176.92x = 19,562.94 × 7,889.88
  4. Step 4: Simplify right side
    14,176.92x = 154,349,249.05
  5. Step 5: Solve for x
    x = 154,349,249.05/14,176.92
  6. Step 6: Final answer
    x = 10,887.36

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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.