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Finding the Fourth Proportional to 7,907.98, 11,837.36 and 4,980.13

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Solution

The fourth proportional to 7,907.98, 11,837.36 and 4,980.13 is: 7,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.98 : 11,837.36 = 4,980.13 : x
  2. Step 2: Convert to fraction form
    7,907.98/11,837.36 = 4,980.13/x
  3. Step 3: Cross multiply
    7,907.98x = 11,837.36 × 4,980.13
  4. Step 4: Simplify right side
    7,907.98x = 58,951,537.16
  5. Step 5: Solve for x
    x = 58,951,537.16/7,907.98
  6. Step 6: Final answer
    x = 7,454.69

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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.