Home / 19,422.06-29,128.76-7,576.16

Finding the Fourth Proportional to 19,422.06, 29,128.76 and 7,576.16

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Solution

The fourth proportional to 19,422.06, 29,128.76 and 7,576.16 is: 11,362.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.06 : 29,128.76 = 7,576.16 : x
  2. Step 2: Convert to fraction form
    19,422.06/29,128.76 = 7,576.16/x
  3. Step 3: Cross multiply
    19,422.06x = 29,128.76 × 7,576.16
  4. Step 4: Simplify right side
    19,422.06x = 220,683,962.84
  5. Step 5: Solve for x
    x = 220,683,962.84/19,422.06
  6. Step 6: Final answer
    x = 11,362.54

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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.