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Finding the Fourth Proportional to 54,326.61, 74,929.52 and 47,600.54

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Solution

The fourth proportional to 54,326.61, 74,929.52 and 47,600.54 is: 65,652.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.61 : 74,929.52 = 47,600.54 : x
  2. Step 2: Convert to fraction form
    54,326.61/74,929.52 = 47,600.54/x
  3. Step 3: Cross multiply
    54,326.61x = 74,929.52 × 47,600.54
  4. Step 4: Simplify right side
    54,326.61x = 3,566,685,001.29
  5. Step 5: Solve for x
    x = 3,566,685,001.29/54,326.61
  6. Step 6: Final answer
    x = 65,652.63

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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.