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Finding the Fourth Proportional to 37,438.98, 51,666.03 and 20,671.98

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Solution

The fourth proportional to 37,438.98, 51,666.03 and 20,671.98 is: 28,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,438.98 : 51,666.03 = 20,671.98 : x
  2. Step 2: Convert to fraction form
    37,438.98/51,666.03 = 20,671.98/x
  3. Step 3: Cross multiply
    37,438.98x = 51,666.03 × 20,671.98
  4. Step 4: Simplify right side
    37,438.98x = 1,068,039,138.84
  5. Step 5: Solve for x
    x = 1,068,039,138.84/37,438.98
  6. Step 6: Final answer
    x = 28,527.46

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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.