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Finding the Fourth Proportional to 73,071.48, 100,837.74 and 39,536.76

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Solution

The fourth proportional to 73,071.48, 100,837.74 and 39,536.76 is: 54,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,071.48 : 100,837.74 = 39,536.76 : x
  2. Step 2: Convert to fraction form
    73,071.48/100,837.74 = 39,536.76/x
  3. Step 3: Cross multiply
    73,071.48x = 100,837.74 × 39,536.76
  4. Step 4: Simplify right side
    73,071.48x = 3,986,797,525.32
  5. Step 5: Solve for x
    x = 3,986,797,525.32/73,071.48
  6. Step 6: Final answer
    x = 54,560.24

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1.5x scale

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.