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Finding the Fourth Proportional to 66,603.50, 99,902.95 and 16,684.03

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Solution

The fourth proportional to 66,603.50, 99,902.95 and 16,684.03 is: 25,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.50 : 99,902.95 = 16,684.03 : x
  2. Step 2: Convert to fraction form
    66,603.50/99,902.95 = 16,684.03/x
  3. Step 3: Cross multiply
    66,603.50x = 99,902.95 × 16,684.03
  4. Step 4: Simplify right side
    66,603.50x = 1,666,783,814.89
  5. Step 5: Solve for x
    x = 1,666,783,814.89/66,603.50
  6. Step 6: Final answer
    x = 25,025.47

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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.