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Finding the Fourth Proportional to 18,483.36, 27,725.40 and 4,632

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Solution

The fourth proportional to 18,483.36, 27,725.40 and 4,632 is: 6,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.36 : 27,725.40 = 4,632 : x
  2. Step 2: Convert to fraction form
    18,483.36/27,725.40 = 4,632/x
  3. Step 3: Cross multiply
    18,483.36x = 27,725.40 × 4,632
  4. Step 4: Simplify right side
    18,483.36x = 128,424,052.80
  5. Step 5: Solve for x
    x = 128,424,052.80/18,483.36
  6. Step 6: Final answer
    x = 6,948.09

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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.