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Finding the Fourth Proportional to 64,409.70, 96,610.50 and 20,033.04

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Solution

The fourth proportional to 64,409.70, 96,610.50 and 20,033.04 is: 30,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.70 : 96,610.50 = 20,033.04 : x
  2. Step 2: Convert to fraction form
    64,409.70/96,610.50 = 20,033.04/x
  3. Step 3: Cross multiply
    64,409.70x = 96,610.50 × 20,033.04
  4. Step 4: Simplify right side
    64,409.70x = 1,935,402,010.92
  5. Step 5: Solve for x
    x = 1,935,402,010.92/64,409.70
  6. Step 6: Final answer
    x = 30,048.30

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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.