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Finding the Fourth Proportional to 12,069.70, 18,104.55 and 10,533.70

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Solution

The fourth proportional to 12,069.70, 18,104.55 and 10,533.70 is: 15,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.70 : 18,104.55 = 10,533.70 : x
  2. Step 2: Convert to fraction form
    12,069.70/18,104.55 = 10,533.70/x
  3. Step 3: Cross multiply
    12,069.70x = 18,104.55 × 10,533.70
  4. Step 4: Simplify right side
    12,069.70x = 190,707,898.34
  5. Step 5: Solve for x
    x = 190,707,898.34/12,069.70
  6. Step 6: Final answer
    x = 15,800.55

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Similar ratio
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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.