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Finding the Fourth Proportional to 58,518, 87,777 and 16,965.36

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Solution

The fourth proportional to 58,518, 87,777 and 16,965.36 is: 25,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,518 : 87,777 = 16,965.36 : x
  2. Step 2: Convert to fraction form
    58,518/87,777 = 16,965.36/x
  3. Step 3: Cross multiply
    58,518x = 87,777 × 16,965.36
  4. Step 4: Simplify right side
    58,518x = 1,489,168,404.72
  5. Step 5: Solve for x
    x = 1,489,168,404.72/58,518
  6. Step 6: Final answer
    x = 25,448.04

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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.