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Finding the Fourth Proportional to 11,077.60, 16,529.60 and 11,012.80

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Solution

The fourth proportional to 11,077.60, 16,529.60 and 11,012.80 is: 16,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.60 : 16,529.60 = 11,012.80 : x
  2. Step 2: Convert to fraction form
    11,077.60/16,529.60 = 11,012.80/x
  3. Step 3: Cross multiply
    11,077.60x = 16,529.60 × 11,012.80
  4. Step 4: Simplify right side
    11,077.60x = 182,037,178.88
  5. Step 5: Solve for x
    x = 182,037,178.88/11,077.60
  6. Step 6: Final answer
    x = 16,432.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.