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Finding the Fourth Proportional to 29,466.59, 40,664.81 and 16,720.31

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Solution

The fourth proportional to 29,466.59, 40,664.81 and 16,720.31 is: 23,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,466.59 : 40,664.81 = 16,720.31 : x
  2. Step 2: Convert to fraction form
    29,466.59/40,664.81 = 16,720.31/x
  3. Step 3: Cross multiply
    29,466.59x = 40,664.81 × 16,720.31
  4. Step 4: Simplify right side
    29,466.59x = 679,928,229.29
  5. Step 5: Solve for x
    x = 679,928,229.29/29,466.59
  6. Step 6: Final answer
    x = 23,074.55

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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.