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Finding the Fourth Proportional to 36,970.56, 51,010.56 and 21,055.68

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Solution

The fourth proportional to 36,970.56, 51,010.56 and 21,055.68 is: 29,051.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,970.56 : 51,010.56 = 21,055.68 : x
  2. Step 2: Convert to fraction form
    36,970.56/51,010.56 = 21,055.68/x
  3. Step 3: Cross multiply
    36,970.56x = 51,010.56 × 21,055.68
  4. Step 4: Simplify right side
    36,970.56x = 1,074,062,027.98
  5. Step 5: Solve for x
    x = 1,074,062,027.98/36,970.56
  6. Step 6: Final answer
    x = 29,051.82

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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.