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Finding the Fourth Proportional to 7,907.73, 10,962.63 and 7,486.38

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Solution

The fourth proportional to 7,907.73, 10,962.63 and 7,486.38 is: 10,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.73 : 10,962.63 = 7,486.38 : x
  2. Step 2: Convert to fraction form
    7,907.73/10,962.63 = 7,486.38/x
  3. Step 3: Cross multiply
    7,907.73x = 10,962.63 × 7,486.38
  4. Step 4: Simplify right side
    7,907.73x = 82,070,413.98
  5. Step 5: Solve for x
    x = 82,070,413.98/7,907.73
  6. Step 6: Final answer
    x = 10,378.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.