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Finding the Fourth Proportional to 18,645.93, 27,973.77 and 6,959.25

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Solution

The fourth proportional to 18,645.93, 27,973.77 and 6,959.25 is: 10,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.93 : 27,973.77 = 6,959.25 : x
  2. Step 2: Convert to fraction form
    18,645.93/27,973.77 = 6,959.25/x
  3. Step 3: Cross multiply
    18,645.93x = 27,973.77 × 6,959.25
  4. Step 4: Simplify right side
    18,645.93x = 194,676,458.87
  5. Step 5: Solve for x
    x = 194,676,458.87/18,645.93
  6. Step 6: Final answer
    x = 10,440.69

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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.