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Finding the Fourth Proportional to 8,574.77, 11,835.03 and 5,218.67

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Solution

The fourth proportional to 8,574.77, 11,835.03 and 5,218.67 is: 7,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.77 : 11,835.03 = 5,218.67 : x
  2. Step 2: Convert to fraction form
    8,574.77/11,835.03 = 5,218.67/x
  3. Step 3: Cross multiply
    8,574.77x = 11,835.03 × 5,218.67
  4. Step 4: Simplify right side
    8,574.77x = 61,763,076.40
  5. Step 5: Solve for x
    x = 61,763,076.40/8,574.77
  6. Step 6: Final answer
    x = 7,202.88

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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.