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Finding the Fourth Proportional to 8,629.98, 12,923.01 and 5,703.90

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Solution

The fourth proportional to 8,629.98, 12,923.01 and 5,703.90 is: 8,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.98 : 12,923.01 = 5,703.90 : x
  2. Step 2: Convert to fraction form
    8,629.98/12,923.01 = 5,703.90/x
  3. Step 3: Cross multiply
    8,629.98x = 12,923.01 × 5,703.90
  4. Step 4: Simplify right side
    8,629.98x = 73,711,556.74
  5. Step 5: Solve for x
    x = 73,711,556.74/8,629.98
  6. Step 6: Final answer
    x = 8,541.34

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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.