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Finding the Fourth Proportional to 63,665.81, 95,353.29 and 30,409.40

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Solution

The fourth proportional to 63,665.81, 95,353.29 and 30,409.40 is: 45,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,665.81 : 95,353.29 = 30,409.40 : x
  2. Step 2: Convert to fraction form
    63,665.81/95,353.29 = 30,409.40/x
  3. Step 3: Cross multiply
    63,665.81x = 95,353.29 × 30,409.40
  4. Step 4: Simplify right side
    63,665.81x = 2,899,635,860.16
  5. Step 5: Solve for x
    x = 2,899,635,860.16/63,665.81
  6. Step 6: Final answer
    x = 45,544.64

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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.