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Finding the Fourth Proportional to 17,908.65, 26,881.13 and 7,384.97

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Solution

The fourth proportional to 17,908.65, 26,881.13 and 7,384.97 is: 11,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.65 : 26,881.13 = 7,384.97 : x
  2. Step 2: Convert to fraction form
    17,908.65/26,881.13 = 7,384.97/x
  3. Step 3: Cross multiply
    17,908.65x = 26,881.13 × 7,384.97
  4. Step 4: Simplify right side
    17,908.65x = 198,516,354.81
  5. Step 5: Solve for x
    x = 198,516,354.81/17,908.65
  6. Step 6: Final answer
    x = 11,084.94

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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.