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Finding the Fourth Proportional to 65,359.68, 98,041.12 and 18,612.96

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Solution

The fourth proportional to 65,359.68, 98,041.12 and 18,612.96 is: 27,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,359.68 : 98,041.12 = 18,612.96 : x
  2. Step 2: Convert to fraction form
    65,359.68/98,041.12 = 18,612.96/x
  3. Step 3: Cross multiply
    65,359.68x = 98,041.12 × 18,612.96
  4. Step 4: Simplify right side
    65,359.68x = 1,824,835,444.92
  5. Step 5: Solve for x
    x = 1,824,835,444.92/65,359.68
  6. Step 6: Final answer
    x = 27,919.90

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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.