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Finding the Fourth Proportional to 11,907.96, 17,860.98 and 4,885.98

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Solution

The fourth proportional to 11,907.96, 17,860.98 and 4,885.98 is: 7,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.96 : 17,860.98 = 4,885.98 : x
  2. Step 2: Convert to fraction form
    11,907.96/17,860.98 = 4,885.98/x
  3. Step 3: Cross multiply
    11,907.96x = 17,860.98 × 4,885.98
  4. Step 4: Simplify right side
    11,907.96x = 87,268,391.06
  5. Step 5: Solve for x
    x = 87,268,391.06/11,907.96
  6. Step 6: Final answer
    x = 7,328.58

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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.