Home / 22,485.02-33,690.63-7,685.90

Finding the Fourth Proportional to 22,485.02, 33,690.63 and 7,685.90

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Solution

The fourth proportional to 22,485.02, 33,690.63 and 7,685.90 is: 11,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.02 : 33,690.63 = 7,685.90 : x
  2. Step 2: Convert to fraction form
    22,485.02/33,690.63 = 7,685.90/x
  3. Step 3: Cross multiply
    22,485.02x = 33,690.63 × 7,685.90
  4. Step 4: Simplify right side
    22,485.02x = 258,942,813.12
  5. Step 5: Solve for x
    x = 258,942,813.12/22,485.02
  6. Step 6: Final answer
    x = 11,516.24

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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.