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Finding the Fourth Proportional to 14,558.92, 20,089.92 and 8,510.58

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Solution

The fourth proportional to 14,558.92, 20,089.92 and 8,510.58 is: 11,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.92 : 20,089.92 = 8,510.58 : x
  2. Step 2: Convert to fraction form
    14,558.92/20,089.92 = 8,510.58/x
  3. Step 3: Cross multiply
    14,558.92x = 20,089.92 × 8,510.58
  4. Step 4: Simplify right side
    14,558.92x = 170,976,874.75
  5. Step 5: Solve for x
    x = 170,976,874.75/14,558.92
  6. Step 6: Final answer
    x = 11,743.79

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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.