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Finding the Fourth Proportional to 35,645.50, 49,203.77 and 20,741.50

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Solution

The fourth proportional to 35,645.50, 49,203.77 and 20,741.50 is: 28,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,645.50 : 49,203.77 = 20,741.50 : x
  2. Step 2: Convert to fraction form
    35,645.50/49,203.77 = 20,741.50/x
  3. Step 3: Cross multiply
    35,645.50x = 49,203.77 × 20,741.50
  4. Step 4: Simplify right side
    35,645.50x = 1,020,559,995.46
  5. Step 5: Solve for x
    x = 1,020,559,995.46/35,645.50
  6. Step 6: Final answer
    x = 28,630.82

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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.