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Finding the Fourth Proportional to 35,668.60, 53,535.78 and 18,151

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Solution

The fourth proportional to 35,668.60, 53,535.78 and 18,151 is: 27,243.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,668.60 : 53,535.78 = 18,151 : x
  2. Step 2: Convert to fraction form
    35,668.60/53,535.78 = 18,151/x
  3. Step 3: Cross multiply
    35,668.60x = 53,535.78 × 18,151
  4. Step 4: Simplify right side
    35,668.60x = 971,727,942.78
  5. Step 5: Solve for x
    x = 971,727,942.78/35,668.60
  6. Step 6: Final answer
    x = 27,243.23

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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.