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Finding the Fourth Proportional to 8,349.90, 11,520.06 and 4,813.04

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Solution

The fourth proportional to 8,349.90, 11,520.06 and 4,813.04 is: 6,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.90 : 11,520.06 = 4,813.04 : x
  2. Step 2: Convert to fraction form
    8,349.90/11,520.06 = 4,813.04/x
  3. Step 3: Cross multiply
    8,349.90x = 11,520.06 × 4,813.04
  4. Step 4: Simplify right side
    8,349.90x = 55,446,509.58
  5. Step 5: Solve for x
    x = 55,446,509.58/8,349.90
  6. Step 6: Final answer
    x = 6,640.38

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Half scale
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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.