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Finding the Fourth Proportional to 45,011.80, 67,511.76 and 11,734.32

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Solution

The fourth proportional to 45,011.80, 67,511.76 and 11,734.32 is: 17,599.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,011.80 : 67,511.76 = 11,734.32 : x
  2. Step 2: Convert to fraction form
    45,011.80/67,511.76 = 11,734.32/x
  3. Step 3: Cross multiply
    45,011.80x = 67,511.76 × 11,734.32
  4. Step 4: Simplify right side
    45,011.80x = 792,204,595.60
  5. Step 5: Solve for x
    x = 792,204,595.60/45,011.80
  6. Step 6: Final answer
    x = 17,599.93

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1.5x scale

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.