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Finding the Fourth Proportional to 62,409.56, 86,133.26 and 35,561.70

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Solution

The fourth proportional to 62,409.56, 86,133.26 and 35,561.70 is: 49,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.56 : 86,133.26 = 35,561.70 : x
  2. Step 2: Convert to fraction form
    62,409.56/86,133.26 = 35,561.70/x
  3. Step 3: Cross multiply
    62,409.56x = 86,133.26 × 35,561.70
  4. Step 4: Simplify right side
    62,409.56x = 3,063,045,152.14
  5. Step 5: Solve for x
    x = 3,063,045,152.14/62,409.56
  6. Step 6: Final answer
    x = 49,079.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.