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Finding the Fourth Proportional to 65,557.72, 98,336.60 and 16,309.72

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Solution

The fourth proportional to 65,557.72, 98,336.60 and 16,309.72 is: 24,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,557.72 : 98,336.60 = 16,309.72 : x
  2. Step 2: Convert to fraction form
    65,557.72/98,336.60 = 16,309.72/x
  3. Step 3: Cross multiply
    65,557.72x = 98,336.60 × 16,309.72
  4. Step 4: Simplify right side
    65,557.72x = 1,603,842,411.75
  5. Step 5: Solve for x
    x = 1,603,842,411.75/65,557.72
  6. Step 6: Final answer
    x = 24,464.58

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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.