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Finding the Fourth Proportional to 65,804.91, 98,707.37 and 19,057.79

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Solution

The fourth proportional to 65,804.91, 98,707.37 and 19,057.79 is: 28,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,804.91 : 98,707.37 = 19,057.79 : x
  2. Step 2: Convert to fraction form
    65,804.91/98,707.37 = 19,057.79/x
  3. Step 3: Cross multiply
    65,804.91x = 98,707.37 × 19,057.79
  4. Step 4: Simplify right side
    65,804.91x = 1,881,143,740.09
  5. Step 5: Solve for x
    x = 1,881,143,740.09/65,804.91
  6. Step 6: Final answer
    x = 28,586.68

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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.