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Finding the Fourth Proportional to 16,953.60, 25,432.80 and 5,265.60

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Solution

The fourth proportional to 16,953.60, 25,432.80 and 5,265.60 is: 7,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.60 : 25,432.80 = 5,265.60 : x
  2. Step 2: Convert to fraction form
    16,953.60/25,432.80 = 5,265.60/x
  3. Step 3: Cross multiply
    16,953.60x = 25,432.80 × 5,265.60
  4. Step 4: Simplify right side
    16,953.60x = 133,918,951.68
  5. Step 5: Solve for x
    x = 133,918,951.68/16,953.60
  6. Step 6: Final answer
    x = 7,899.15

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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.