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Finding the Fourth Proportional to 17,053.90, 25,585.92 and 8,739.77

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Solution

The fourth proportional to 17,053.90, 25,585.92 and 8,739.77 is: 13,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,053.90 : 25,585.92 = 8,739.77 : x
  2. Step 2: Convert to fraction form
    17,053.90/25,585.92 = 8,739.77/x
  3. Step 3: Cross multiply
    17,053.90x = 25,585.92 × 8,739.77
  4. Step 4: Simplify right side
    17,053.90x = 223,614,928.11
  5. Step 5: Solve for x
    x = 223,614,928.11/17,053.90
  6. Step 6: Final answer
    x = 13,112.25

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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.