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Finding the Fourth Proportional to 29,689.41, 40,969.50 and 16,260.83

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Solution

The fourth proportional to 29,689.41, 40,969.50 and 16,260.83 is: 22,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,689.41 : 40,969.50 = 16,260.83 : x
  2. Step 2: Convert to fraction form
    29,689.41/40,969.50 = 16,260.83/x
  3. Step 3: Cross multiply
    29,689.41x = 40,969.50 × 16,260.83
  4. Step 4: Simplify right side
    29,689.41x = 666,197,869.84
  5. Step 5: Solve for x
    x = 666,197,869.84/29,689.41
  6. Step 6: Final answer
    x = 22,438.91

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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.