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Finding the Fourth Proportional to 54,876.01, 75,728.90 and 29,725.51

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Solution

The fourth proportional to 54,876.01, 75,728.90 and 29,725.51 is: 41,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,876.01 : 75,728.90 = 29,725.51 : x
  2. Step 2: Convert to fraction form
    54,876.01/75,728.90 = 29,725.51/x
  3. Step 3: Cross multiply
    54,876.01x = 75,728.90 × 29,725.51
  4. Step 4: Simplify right side
    54,876.01x = 2,251,080,174.24
  5. Step 5: Solve for x
    x = 2,251,080,174.24/54,876.01
  6. Step 6: Final answer
    x = 41,021.21

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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.