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Finding the Fourth Proportional to 8,622.25, 11,898.08 and 4,845.22

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Solution

The fourth proportional to 8,622.25, 11,898.08 and 4,845.22 is: 6,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.25 : 11,898.08 = 4,845.22 : x
  2. Step 2: Convert to fraction form
    8,622.25/11,898.08 = 4,845.22/x
  3. Step 3: Cross multiply
    8,622.25x = 11,898.08 × 4,845.22
  4. Step 4: Simplify right side
    8,622.25x = 57,648,815.18
  5. Step 5: Solve for x
    x = 57,648,815.18/8,622.25
  6. Step 6: Final answer
    x = 6,686.05

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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.