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Finding the Fourth Proportional to 9,893.73, 13,653.37 and 5,356.46

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Solution

The fourth proportional to 9,893.73, 13,653.37 and 5,356.46 is: 7,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.73 : 13,653.37 = 5,356.46 : x
  2. Step 2: Convert to fraction form
    9,893.73/13,653.37 = 5,356.46/x
  3. Step 3: Cross multiply
    9,893.73x = 13,653.37 × 5,356.46
  4. Step 4: Simplify right side
    9,893.73x = 73,133,696.14
  5. Step 5: Solve for x
    x = 73,133,696.14/9,893.73
  6. Step 6: Final answer
    x = 7,391.92

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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.