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Finding the Fourth Proportional to 9,800.80, 13,525.05 and 5,324.52

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Solution

The fourth proportional to 9,800.80, 13,525.05 and 5,324.52 is: 7,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,800.80 : 13,525.05 = 5,324.52 : x
  2. Step 2: Convert to fraction form
    9,800.80/13,525.05 = 5,324.52/x
  3. Step 3: Cross multiply
    9,800.80x = 13,525.05 × 5,324.52
  4. Step 4: Simplify right side
    9,800.80x = 72,014,399.23
  5. Step 5: Solve for x
    x = 72,014,399.23/9,800.80
  6. Step 6: Final answer
    x = 7,347.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.