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Finding the Fourth Proportional to 18,717.92, 25,823.04 and 10,758.32

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Solution

The fourth proportional to 18,717.92, 25,823.04 and 10,758.32 is: 14,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.92 : 25,823.04 = 10,758.32 : x
  2. Step 2: Convert to fraction form
    18,717.92/25,823.04 = 10,758.32/x
  3. Step 3: Cross multiply
    18,717.92x = 25,823.04 × 10,758.32
  4. Step 4: Simplify right side
    18,717.92x = 277,812,527.69
  5. Step 5: Solve for x
    x = 277,812,527.69/18,717.92
  6. Step 6: Final answer
    x = 14,842.06

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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.