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Finding the Fourth Proportional to 72,651.04, 108,994.12 and 25,259.28

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Solution

The fourth proportional to 72,651.04, 108,994.12 and 25,259.28 is: 37,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,651.04 : 108,994.12 = 25,259.28 : x
  2. Step 2: Convert to fraction form
    72,651.04/108,994.12 = 25,259.28/x
  3. Step 3: Cross multiply
    72,651.04x = 108,994.12 × 25,259.28
  4. Step 4: Simplify right side
    72,651.04x = 2,753,112,995.43
  5. Step 5: Solve for x
    x = 2,753,112,995.43/72,651.04
  6. Step 6: Final answer
    x = 37,895.03

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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.