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Finding the Fourth Proportional to 16,475.79, 24,689.25 and 8,660.91

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Solution

The fourth proportional to 16,475.79, 24,689.25 and 8,660.91 is: 12,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,475.79 : 24,689.25 = 8,660.91 : x
  2. Step 2: Convert to fraction form
    16,475.79/24,689.25 = 8,660.91/x
  3. Step 3: Cross multiply
    16,475.79x = 24,689.25 × 8,660.91
  4. Step 4: Simplify right side
    16,475.79x = 213,831,372.22
  5. Step 5: Solve for x
    x = 213,831,372.22/16,475.79
  6. Step 6: Final answer
    x = 12,978.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.