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Finding the Fourth Proportional to 33,051.96, 45,615.96 and 18,904.50

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Solution

The fourth proportional to 33,051.96, 45,615.96 and 18,904.50 is: 26,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,051.96 : 45,615.96 = 18,904.50 : x
  2. Step 2: Convert to fraction form
    33,051.96/45,615.96 = 18,904.50/x
  3. Step 3: Cross multiply
    33,051.96x = 45,615.96 × 18,904.50
  4. Step 4: Simplify right side
    33,051.96x = 862,346,915.82
  5. Step 5: Solve for x
    x = 862,346,915.82/33,051.96
  6. Step 6: Final answer
    x = 26,090.64

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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.