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Finding the Fourth Proportional to 36,700.95, 50,647.47 and 20,788.50

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Solution

The fourth proportional to 36,700.95, 50,647.47 and 20,788.50 is: 28,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.95 : 50,647.47 = 20,788.50 : x
  2. Step 2: Convert to fraction form
    36,700.95/50,647.47 = 20,788.50/x
  3. Step 3: Cross multiply
    36,700.95x = 50,647.47 × 20,788.50
  4. Step 4: Simplify right side
    36,700.95x = 1,052,884,930.10
  5. Step 5: Solve for x
    x = 1,052,884,930.10/36,700.95
  6. Step 6: Final answer
    x = 28,688.22

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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.