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Finding the Fourth Proportional to 18,754.94, 28,130.39 and 6,273.55

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Solution

The fourth proportional to 18,754.94, 28,130.39 and 6,273.55 is: 9,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.94 : 28,130.39 = 6,273.55 : x
  2. Step 2: Convert to fraction form
    18,754.94/28,130.39 = 6,273.55/x
  3. Step 3: Cross multiply
    18,754.94x = 28,130.39 × 6,273.55
  4. Step 4: Simplify right side
    18,754.94x = 176,477,435.51
  5. Step 5: Solve for x
    x = 176,477,435.51/18,754.94
  6. Step 6: Final answer
    x = 9,409.65

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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.