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Finding the Fourth Proportional to 69,298.63, 103,947.03 and 16,707.69

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Solution

The fourth proportional to 69,298.63, 103,947.03 and 16,707.69 is: 25,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,298.63 : 103,947.03 = 16,707.69 : x
  2. Step 2: Convert to fraction form
    69,298.63/103,947.03 = 16,707.69/x
  3. Step 3: Cross multiply
    69,298.63x = 103,947.03 × 16,707.69
  4. Step 4: Simplify right side
    69,298.63x = 1,736,714,753.66
  5. Step 5: Solve for x
    x = 1,736,714,753.66/69,298.63
  6. Step 6: Final answer
    x = 25,061.32

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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.