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Finding the Fourth Proportional to 9,643.33, 13,283.99 and 8,222.39

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Solution

The fourth proportional to 9,643.33, 13,283.99 and 8,222.39 is: 11,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.33 : 13,283.99 = 8,222.39 : x
  2. Step 2: Convert to fraction form
    9,643.33/13,283.99 = 8,222.39/x
  3. Step 3: Cross multiply
    9,643.33x = 13,283.99 × 8,222.39
  4. Step 4: Simplify right side
    9,643.33x = 109,226,146.54
  5. Step 5: Solve for x
    x = 109,226,146.54/9,643.33
  6. Step 6: Final answer
    x = 11,326.60

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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.