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Finding the Fourth Proportional to 11,904.75, 17,860.30 and 5,980.03

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Solution

The fourth proportional to 11,904.75, 17,860.30 and 5,980.03 is: 8,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.75 : 17,860.30 = 5,980.03 : x
  2. Step 2: Convert to fraction form
    11,904.75/17,860.30 = 5,980.03/x
  3. Step 3: Cross multiply
    11,904.75x = 17,860.30 × 5,980.03
  4. Step 4: Simplify right side
    11,904.75x = 106,805,070.21
  5. Step 5: Solve for x
    x = 106,805,070.21/11,904.75
  6. Step 6: Final answer
    x = 8,971.63

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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.