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Finding the Fourth Proportional to 26,603.40, 39,902.40 and 9,072.98

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Solution

The fourth proportional to 26,603.40, 39,902.40 and 9,072.98 is: 13,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.40 : 39,902.40 = 9,072.98 : x
  2. Step 2: Convert to fraction form
    26,603.40/39,902.40 = 9,072.98/x
  3. Step 3: Cross multiply
    26,603.40x = 39,902.40 × 9,072.98
  4. Step 4: Simplify right side
    26,603.40x = 362,033,477.64
  5. Step 5: Solve for x
    x = 362,033,477.64/26,603.40
  6. Step 6: Final answer
    x = 13,608.54

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1.5x scale

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.