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Finding the Fourth Proportional to 9,539.75, 13,164.86 and 5,813.75

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Solution

The fourth proportional to 9,539.75, 13,164.86 and 5,813.75 is: 8,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,539.75 : 13,164.86 = 5,813.75 : x
  2. Step 2: Convert to fraction form
    9,539.75/13,164.86 = 5,813.75/x
  3. Step 3: Cross multiply
    9,539.75x = 13,164.86 × 5,813.75
  4. Step 4: Simplify right side
    9,539.75x = 76,537,204.83
  5. Step 5: Solve for x
    x = 76,537,204.83/9,539.75
  6. Step 6: Final answer
    x = 8,022.98

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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.