Home / 17,719.92-26,579.70-7,856.46

Finding the Fourth Proportional to 17,719.92, 26,579.70 and 7,856.46

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Solution

The fourth proportional to 17,719.92, 26,579.70 and 7,856.46 is: 11,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.92 : 26,579.70 = 7,856.46 : x
  2. Step 2: Convert to fraction form
    17,719.92/26,579.70 = 7,856.46/x
  3. Step 3: Cross multiply
    17,719.92x = 26,579.70 × 7,856.46
  4. Step 4: Simplify right side
    17,719.92x = 208,822,349.86
  5. Step 5: Solve for x
    x = 208,822,349.86/17,719.92
  6. Step 6: Final answer
    x = 11,784.61

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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.