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Finding the Fourth Proportional to 65,814.82, 98,659.95 and 40,529.87

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Solution

The fourth proportional to 65,814.82, 98,659.95 and 40,529.87 is: 60,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,814.82 : 98,659.95 = 40,529.87 : x
  2. Step 2: Convert to fraction form
    65,814.82/98,659.95 = 40,529.87/x
  3. Step 3: Cross multiply
    65,814.82x = 98,659.95 × 40,529.87
  4. Step 4: Simplify right side
    65,814.82x = 3,998,674,947.71
  5. Step 5: Solve for x
    x = 3,998,674,947.71/65,814.82
  6. Step 6: Final answer
    x = 60,756.45

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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.