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Finding the Fourth Proportional to 53,718.80, 80,501.79 and 39,567.54

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Solution

The fourth proportional to 53,718.80, 80,501.79 and 39,567.54 is: 59,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,718.80 : 80,501.79 = 39,567.54 : x
  2. Step 2: Convert to fraction form
    53,718.80/80,501.79 = 39,567.54/x
  3. Step 3: Cross multiply
    53,718.80x = 80,501.79 × 39,567.54
  4. Step 4: Simplify right side
    53,718.80x = 3,185,257,795.90
  5. Step 5: Solve for x
    x = 3,185,257,795.90/53,718.80
  6. Step 6: Final answer
    x = 59,295.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.