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Finding the Fourth Proportional to 3,059.45, 4,221.07 and 1,800.94

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Solution

The fourth proportional to 3,059.45, 4,221.07 and 1,800.94 is: 2,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.45 : 4,221.07 = 1,800.94 : x
  2. Step 2: Convert to fraction form
    3,059.45/4,221.07 = 1,800.94/x
  3. Step 3: Cross multiply
    3,059.45x = 4,221.07 × 1,800.94
  4. Step 4: Simplify right side
    3,059.45x = 7,601,893.81
  5. Step 5: Solve for x
    x = 7,601,893.81/3,059.45
  6. Step 6: Final answer
    x = 2,484.73

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,060.45, 4,222.45 and 1,801.94
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.