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Finding the Fourth Proportional to 9,858.25, 14,780.09 and 5,961.79

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Solution

The fourth proportional to 9,858.25, 14,780.09 and 5,961.79 is: 8,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858.25 : 14,780.09 = 5,961.79 : x
  2. Step 2: Convert to fraction form
    9,858.25/14,780.09 = 5,961.79/x
  3. Step 3: Cross multiply
    9,858.25x = 14,780.09 × 5,961.79
  4. Step 4: Simplify right side
    9,858.25x = 88,115,762.95
  5. Step 5: Solve for x
    x = 88,115,762.95/9,858.25
  6. Step 6: Final answer
    x = 8,938.28

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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.