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Finding the Fourth Proportional to 10,415.93, 15,623.93 and 2,518.43

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Solution

The fourth proportional to 10,415.93, 15,623.93 and 2,518.43 is: 3,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.93 : 15,623.93 = 2,518.43 : x
  2. Step 2: Convert to fraction form
    10,415.93/15,623.93 = 2,518.43/x
  3. Step 3: Cross multiply
    10,415.93x = 15,623.93 × 2,518.43
  4. Step 4: Simplify right side
    10,415.93x = 39,347,790.09
  5. Step 5: Solve for x
    x = 39,347,790.09/10,415.93
  6. Step 6: Final answer
    x = 3,777.65

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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.