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Finding the Fourth Proportional to 62,664, 86,484 and 36,168

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Solution

The fourth proportional to 62,664, 86,484 and 36,168 is: 49,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,664 : 86,484 = 36,168 : x
  2. Step 2: Convert to fraction form
    62,664/86,484 = 36,168/x
  3. Step 3: Cross multiply
    62,664x = 86,484 × 36,168
  4. Step 4: Simplify right side
    62,664x = 3,127,953,312
  5. Step 5: Solve for x
    x = 3,127,953,312/62,664
  6. Step 6: Final answer
    x = 49,916.27

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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.