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Finding the Fourth Proportional to 28,996.52, 40,011.45 and 17,055.50

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Solution

The fourth proportional to 28,996.52, 40,011.45 and 17,055.50 is: 23,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.52 : 40,011.45 = 17,055.50 : x
  2. Step 2: Convert to fraction form
    28,996.52/40,011.45 = 17,055.50/x
  3. Step 3: Cross multiply
    28,996.52x = 40,011.45 × 17,055.50
  4. Step 4: Simplify right side
    28,996.52x = 682,415,285.48
  5. Step 5: Solve for x
    x = 682,415,285.48/28,996.52
  6. Step 6: Final answer
    x = 23,534.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.