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Finding the Fourth Proportional to 20,061.76, 30,089.22 and 6,017.98

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Solution

The fourth proportional to 20,061.76, 30,089.22 and 6,017.98 is: 9,025.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.76 : 30,089.22 = 6,017.98 : x
  2. Step 2: Convert to fraction form
    20,061.76/30,089.22 = 6,017.98/x
  3. Step 3: Cross multiply
    20,061.76x = 30,089.22 × 6,017.98
  4. Step 4: Simplify right side
    20,061.76x = 181,076,324.18
  5. Step 5: Solve for x
    x = 181,076,324.18/20,061.76
  6. Step 6: Final answer
    x = 9,025.94

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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.