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Finding the Fourth Proportional to 74,173.84, 111,259.74 and 18,014.38

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Solution

The fourth proportional to 74,173.84, 111,259.74 and 18,014.38 is: 27,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.84 : 111,259.74 = 18,014.38 : x
  2. Step 2: Convert to fraction form
    74,173.84/111,259.74 = 18,014.38/x
  3. Step 3: Cross multiply
    74,173.84x = 111,259.74 × 18,014.38
  4. Step 4: Simplify right side
    74,173.84x = 2,004,275,235.06
  5. Step 5: Solve for x
    x = 2,004,275,235.06/74,173.84
  6. Step 6: Final answer
    x = 27,021.32

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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.