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Finding the Fourth Proportional to 48,737.40, 73,134.80 and 20,655.41

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Solution

The fourth proportional to 48,737.40, 73,134.80 and 20,655.41 is: 30,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,737.40 : 73,134.80 = 20,655.41 : x
  2. Step 2: Convert to fraction form
    48,737.40/73,134.80 = 20,655.41/x
  3. Step 3: Cross multiply
    48,737.40x = 73,134.80 × 20,655.41
  4. Step 4: Simplify right side
    48,737.40x = 1,510,628,887.77
  5. Step 5: Solve for x
    x = 1,510,628,887.77/48,737.40
  6. Step 6: Final answer
    x = 30,995.27

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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.