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Finding the Fourth Proportional to 72,536.01, 108,738.35 and 25,777.95

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Solution

The fourth proportional to 72,536.01, 108,738.35 and 25,777.95 is: 38,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,536.01 : 108,738.35 = 25,777.95 : x
  2. Step 2: Convert to fraction form
    72,536.01/108,738.35 = 25,777.95/x
  3. Step 3: Cross multiply
    72,536.01x = 108,738.35 × 25,777.95
  4. Step 4: Simplify right side
    72,536.01x = 2,803,051,309.39
  5. Step 5: Solve for x
    x = 2,803,051,309.39/72,536.01
  6. Step 6: Final answer
    x = 38,643.58

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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.