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Finding the Fourth Proportional to 18,812.35, 28,224.74 and 6,333.58

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Solution

The fourth proportional to 18,812.35, 28,224.74 and 6,333.58 is: 9,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.35 : 28,224.74 = 6,333.58 : x
  2. Step 2: Convert to fraction form
    18,812.35/28,224.74 = 6,333.58/x
  3. Step 3: Cross multiply
    18,812.35x = 28,224.74 × 6,333.58
  4. Step 4: Simplify right side
    18,812.35x = 178,763,648.77
  5. Step 5: Solve for x
    x = 178,763,648.77/18,812.35
  6. Step 6: Final answer
    x = 9,502.46

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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.