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Finding the Fourth Proportional to 9,798.99, 13,525.83 and 6,443.97

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Solution

The fourth proportional to 9,798.99, 13,525.83 and 6,443.97 is: 8,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.99 : 13,525.83 = 6,443.97 : x
  2. Step 2: Convert to fraction form
    9,798.99/13,525.83 = 6,443.97/x
  3. Step 3: Cross multiply
    9,798.99x = 13,525.83 × 6,443.97
  4. Step 4: Simplify right side
    9,798.99x = 87,160,042.75
  5. Step 5: Solve for x
    x = 87,160,042.75/9,798.99
  6. Step 6: Final answer
    x = 8,894.80

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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.