Home / 17,615.62-26,428.02-5,135.38

Finding the Fourth Proportional to 17,615.62, 26,428.02 and 5,135.38

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Solution

The fourth proportional to 17,615.62, 26,428.02 and 5,135.38 is: 7,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.62 : 26,428.02 = 5,135.38 : x
  2. Step 2: Convert to fraction form
    17,615.62/26,428.02 = 5,135.38/x
  3. Step 3: Cross multiply
    17,615.62x = 26,428.02 × 5,135.38
  4. Step 4: Simplify right side
    17,615.62x = 135,717,925.35
  5. Step 5: Solve for x
    x = 135,717,925.35/17,615.62
  6. Step 6: Final answer
    x = 7,704.41

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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.