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Finding the Fourth Proportional to 38,443.95, 57,669.10 and 14,762.99

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Solution

The fourth proportional to 38,443.95, 57,669.10 and 14,762.99 is: 22,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.95 : 57,669.10 = 14,762.99 : x
  2. Step 2: Convert to fraction form
    38,443.95/57,669.10 = 14,762.99/x
  3. Step 3: Cross multiply
    38,443.95x = 57,669.10 × 14,762.99
  4. Step 4: Simplify right side
    38,443.95x = 851,368,453.87
  5. Step 5: Solve for x
    x = 851,368,453.87/38,443.95
  6. Step 6: Final answer
    x = 22,145.71

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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.