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Finding the Fourth Proportional to 35,968.99, 53,959.04 and 12,270.99

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Solution

The fourth proportional to 35,968.99, 53,959.04 and 12,270.99 is: 18,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,968.99 : 53,959.04 = 12,270.99 : x
  2. Step 2: Convert to fraction form
    35,968.99/53,959.04 = 12,270.99/x
  3. Step 3: Cross multiply
    35,968.99x = 53,959.04 × 12,270.99
  4. Step 4: Simplify right side
    35,968.99x = 662,130,723.74
  5. Step 5: Solve for x
    x = 662,130,723.74/35,968.99
  6. Step 6: Final answer
    x = 18,408.38

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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.