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Finding the Fourth Proportional to 29,663.00, 40,939.52 and 16,916.21

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Solution

The fourth proportional to 29,663.00, 40,939.52 and 16,916.21 is: 23,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,663.00 : 40,939.52 = 16,916.21 : x
  2. Step 2: Convert to fraction form
    29,663.00/40,939.52 = 16,916.21/x
  3. Step 3: Cross multiply
    29,663.00x = 40,939.52 × 16,916.21
  4. Step 4: Simplify right side
    29,663.00x = 692,541,228.34
  5. Step 5: Solve for x
    x = 692,541,228.34/29,663.00
  6. Step 6: Final answer
    x = 23,346.98

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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.