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Finding the Fourth Proportional to 35,481.51, 53,162.02 and 21,411.97

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Solution

The fourth proportional to 35,481.51, 53,162.02 and 21,411.97 is: 32,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.51 : 53,162.02 = 21,411.97 : x
  2. Step 2: Convert to fraction form
    35,481.51/53,162.02 = 21,411.97/x
  3. Step 3: Cross multiply
    35,481.51x = 53,162.02 × 21,411.97
  4. Step 4: Simplify right side
    35,481.51x = 1,138,303,784.81
  5. Step 5: Solve for x
    x = 1,138,303,784.81/35,481.51
  6. Step 6: Final answer
    x = 32,081.60

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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.