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Finding the Fourth Proportional to 74,009.77, 110,997.90 and 33,990.28

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Solution

The fourth proportional to 74,009.77, 110,997.90 and 33,990.28 is: 50,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,009.77 : 110,997.90 = 33,990.28 : x
  2. Step 2: Convert to fraction form
    74,009.77/110,997.90 = 33,990.28/x
  3. Step 3: Cross multiply
    74,009.77x = 110,997.90 × 33,990.28
  4. Step 4: Simplify right side
    74,009.77x = 3,772,849,422.92
  5. Step 5: Solve for x
    x = 3,772,849,422.92/74,009.77
  6. Step 6: Final answer
    x = 50,977.72

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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.