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Finding the Fourth Proportional to 35,865.80, 53,772.18 and 17,130.44

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Solution

The fourth proportional to 35,865.80, 53,772.18 and 17,130.44 is: 25,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,865.80 : 53,772.18 = 17,130.44 : x
  2. Step 2: Convert to fraction form
    35,865.80/53,772.18 = 17,130.44/x
  3. Step 3: Cross multiply
    35,865.80x = 53,772.18 × 17,130.44
  4. Step 4: Simplify right side
    35,865.80x = 921,141,103.16
  5. Step 5: Solve for x
    x = 921,141,103.16/35,865.80
  6. Step 6: Final answer
    x = 25,682.99

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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.