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Finding the Fourth Proportional to 8,620.32, 11,896.04 and 4,894.32

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Solution

The fourth proportional to 8,620.32, 11,896.04 and 4,894.32 is: 6,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.32 : 11,896.04 = 4,894.32 : x
  2. Step 2: Convert to fraction form
    8,620.32/11,896.04 = 4,894.32/x
  3. Step 3: Cross multiply
    8,620.32x = 11,896.04 × 4,894.32
  4. Step 4: Simplify right side
    8,620.32x = 58,223,026.49
  5. Step 5: Solve for x
    x = 58,223,026.49/8,620.32
  6. Step 6: Final answer
    x = 6,754.16

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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.