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Finding the Fourth Proportional to 18,902.79, 26,091.59 and 10,946.97

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Solution

The fourth proportional to 18,902.79, 26,091.59 and 10,946.97 is: 15,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.79 : 26,091.59 = 10,946.97 : x
  2. Step 2: Convert to fraction form
    18,902.79/26,091.59 = 10,946.97/x
  3. Step 3: Cross multiply
    18,902.79x = 26,091.59 × 10,946.97
  4. Step 4: Simplify right side
    18,902.79x = 285,623,798.25
  5. Step 5: Solve for x
    x = 285,623,798.25/18,902.79
  6. Step 6: Final answer
    x = 15,110.14

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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.