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Finding the Fourth Proportional to 37,607.68, 51,900.78 and 21,692.80

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Solution

The fourth proportional to 37,607.68, 51,900.78 and 21,692.80 is: 29,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,607.68 : 51,900.78 = 21,692.80 : x
  2. Step 2: Convert to fraction form
    37,607.68/51,900.78 = 21,692.80/x
  3. Step 3: Cross multiply
    37,607.68x = 51,900.78 × 21,692.80
  4. Step 4: Simplify right side
    37,607.68x = 1,125,873,240.38
  5. Step 5: Solve for x
    x = 1,125,873,240.38/37,607.68
  6. Step 6: Final answer
    x = 29,937.32

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1.5x scale

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.