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Finding the Fourth Proportional to 53,757.61, 80,636.60 and 16,318

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Solution

The fourth proportional to 53,757.61, 80,636.60 and 16,318 is: 24,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,757.61 : 80,636.60 = 16,318 : x
  2. Step 2: Convert to fraction form
    53,757.61/80,636.60 = 16,318/x
  3. Step 3: Cross multiply
    53,757.61x = 80,636.60 × 16,318
  4. Step 4: Simplify right side
    53,757.61x = 1,315,828,038.80
  5. Step 5: Solve for x
    x = 1,315,828,038.80/53,757.61
  6. Step 6: Final answer
    x = 24,477.06

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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.