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Finding the Fourth Proportional to 35,912.61, 53,809.52 and 18,358.29

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Solution

The fourth proportional to 35,912.61, 53,809.52 and 18,358.29 is: 27,507.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,912.61 : 53,809.52 = 18,358.29 : x
  2. Step 2: Convert to fraction form
    35,912.61/53,809.52 = 18,358.29/x
  3. Step 3: Cross multiply
    35,912.61x = 53,809.52 × 18,358.29
  4. Step 4: Simplify right side
    35,912.61x = 987,850,681.13
  5. Step 5: Solve for x
    x = 987,850,681.13/35,912.61
  6. Step 6: Final answer
    x = 27,507.07

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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.