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Finding the Fourth Proportional to 68,598.98, 102,888.07 and 18,683.01

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Solution

The fourth proportional to 68,598.98, 102,888.07 and 18,683.01 is: 28,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,598.98 : 102,888.07 = 18,683.01 : x
  2. Step 2: Convert to fraction form
    68,598.98/102,888.07 = 18,683.01/x
  3. Step 3: Cross multiply
    68,598.98x = 102,888.07 × 18,683.01
  4. Step 4: Simplify right side
    68,598.98x = 1,922,258,747.28
  5. Step 5: Solve for x
    x = 1,922,258,747.28/68,598.98
  6. Step 6: Final answer
    x = 28,021.68

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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.