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Finding the Fourth Proportional to 29,477.31, 40,674.11 and 16,899.63

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Solution

The fourth proportional to 29,477.31, 40,674.11 and 16,899.63 is: 23,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,477.31 : 40,674.11 = 16,899.63 : x
  2. Step 2: Convert to fraction form
    29,477.31/40,674.11 = 16,899.63/x
  3. Step 3: Cross multiply
    29,477.31x = 40,674.11 × 16,899.63
  4. Step 4: Simplify right side
    29,477.31x = 687,377,409.58
  5. Step 5: Solve for x
    x = 687,377,409.58/29,477.31
  6. Step 6: Final answer
    x = 23,318.86

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1.5x scale

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.