Home / 11,720.75-17,588.30-4,700.01

Finding the Fourth Proportional to 11,720.75, 17,588.30 and 4,700.01

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Solution

The fourth proportional to 11,720.75, 17,588.30 and 4,700.01 is: 7,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.75 : 17,588.30 = 4,700.01 : x
  2. Step 2: Convert to fraction form
    11,720.75/17,588.30 = 4,700.01/x
  3. Step 3: Cross multiply
    11,720.75x = 17,588.30 × 4,700.01
  4. Step 4: Simplify right side
    11,720.75x = 82,665,228.34
  5. Step 5: Solve for x
    x = 82,665,228.34/11,720.75
  6. Step 6: Final answer
    x = 7,052.90

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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.