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Finding the Fourth Proportional to 7,645.94, 10,551.23 and 4,288.68

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Solution

The fourth proportional to 7,645.94, 10,551.23 and 4,288.68 is: 5,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.94 : 10,551.23 = 4,288.68 : x
  2. Step 2: Convert to fraction form
    7,645.94/10,551.23 = 4,288.68/x
  3. Step 3: Cross multiply
    7,645.94x = 10,551.23 × 4,288.68
  4. Step 4: Simplify right side
    7,645.94x = 45,250,843.72
  5. Step 5: Solve for x
    x = 45,250,843.72/7,645.94
  6. Step 6: Final answer
    x = 5,918.28

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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.