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Finding the Fourth Proportional to 51,357.51, 70,873.11 and 29,001.51

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Solution

The fourth proportional to 51,357.51, 70,873.11 and 29,001.51 is: 40,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357.51 : 70,873.11 = 29,001.51 : x
  2. Step 2: Convert to fraction form
    51,357.51/70,873.11 = 29,001.51/x
  3. Step 3: Cross multiply
    51,357.51x = 70,873.11 × 29,001.51
  4. Step 4: Simplify right side
    51,357.51x = 2,055,427,208.40
  5. Step 5: Solve for x
    x = 2,055,427,208.40/51,357.51
  6. Step 6: Final answer
    x = 40,021.94

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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.