Home / 34,856.92-52,252.68-12,664.72

Finding the Fourth Proportional to 34,856.92, 52,252.68 and 12,664.72

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Solution

The fourth proportional to 34,856.92, 52,252.68 and 12,664.72 is: 18,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,856.92 : 52,252.68 = 12,664.72 : x
  2. Step 2: Convert to fraction form
    34,856.92/52,252.68 = 12,664.72/x
  3. Step 3: Cross multiply
    34,856.92x = 52,252.68 × 12,664.72
  4. Step 4: Simplify right side
    34,856.92x = 661,765,561.45
  5. Step 5: Solve for x
    x = 661,765,561.45/34,856.92
  6. Step 6: Final answer
    x = 18,985.20

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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.