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Finding the Fourth Proportional to 53,438.52, 73,739.88 and 29,561.88

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Solution

The fourth proportional to 53,438.52, 73,739.88 and 29,561.88 is: 40,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,438.52 : 73,739.88 = 29,561.88 : x
  2. Step 2: Convert to fraction form
    53,438.52/73,739.88 = 29,561.88/x
  3. Step 3: Cross multiply
    53,438.52x = 73,739.88 × 29,561.88
  4. Step 4: Simplify right side
    53,438.52x = 2,179,889,483.77
  5. Step 5: Solve for x
    x = 2,179,889,483.77/53,438.52
  6. Step 6: Final answer
    x = 40,792.47

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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.