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Finding the Fourth Proportional to 54,251.63, 74,865.51 and 30,051.60

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Solution

The fourth proportional to 54,251.63, 74,865.51 and 30,051.60 is: 41,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,251.63 : 74,865.51 = 30,051.60 : x
  2. Step 2: Convert to fraction form
    54,251.63/74,865.51 = 30,051.60/x
  3. Step 3: Cross multiply
    54,251.63x = 74,865.51 × 30,051.60
  4. Step 4: Simplify right side
    54,251.63x = 2,249,828,360.32
  5. Step 5: Solve for x
    x = 2,249,828,360.32/54,251.63
  6. Step 6: Final answer
    x = 41,470.24

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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.