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Finding the Fourth Proportional to 46,728, 64,484.70 and 29,961

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Solution

The fourth proportional to 46,728, 64,484.70 and 29,961 is: 41,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,728 : 64,484.70 = 29,961 : x
  2. Step 2: Convert to fraction form
    46,728/64,484.70 = 29,961/x
  3. Step 3: Cross multiply
    46,728x = 64,484.70 × 29,961
  4. Step 4: Simplify right side
    46,728x = 1,932,026,096.70
  5. Step 5: Solve for x
    x = 1,932,026,096.70/46,728
  6. Step 6: Final answer
    x = 41,346.22

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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.