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Finding the Fourth Proportional to 7,574.54, 11,351.36 and 3,868.94

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Solution

The fourth proportional to 7,574.54, 11,351.36 and 3,868.94 is: 5,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.54 : 11,351.36 = 3,868.94 : x
  2. Step 2: Convert to fraction form
    7,574.54/11,351.36 = 3,868.94/x
  3. Step 3: Cross multiply
    7,574.54x = 11,351.36 × 3,868.94
  4. Step 4: Simplify right side
    7,574.54x = 43,917,768.81
  5. Step 5: Solve for x
    x = 43,917,768.81/7,574.54
  6. Step 6: Final answer
    x = 5,798.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.