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Finding the Fourth Proportional to 53,412, 80,122.32 and 16,476

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Solution

The fourth proportional to 53,412, 80,122.32 and 16,476 is: 24,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,412 : 80,122.32 = 16,476 : x
  2. Step 2: Convert to fraction form
    53,412/80,122.32 = 16,476/x
  3. Step 3: Cross multiply
    53,412x = 80,122.32 × 16,476
  4. Step 4: Simplify right side
    53,412x = 1,320,095,344.32
  5. Step 5: Solve for x
    x = 1,320,095,344.32/53,412
  6. Step 6: Final answer
    x = 24,715.33

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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.