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Finding the Fourth Proportional to 61,328.52, 91,992.60 and 16,955.16

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Solution

The fourth proportional to 61,328.52, 91,992.60 and 16,955.16 is: 25,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,328.52 : 91,992.60 = 16,955.16 : x
  2. Step 2: Convert to fraction form
    61,328.52/91,992.60 = 16,955.16/x
  3. Step 3: Cross multiply
    61,328.52x = 91,992.60 × 16,955.16
  4. Step 4: Simplify right side
    61,328.52x = 1,559,749,251.82
  5. Step 5: Solve for x
    x = 1,559,749,251.82/61,328.52
  6. Step 6: Final answer
    x = 25,432.69

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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.