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Finding the Fourth Proportional to 2,040.09, 3,059.42 and 885.21

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Solution

The fourth proportional to 2,040.09, 3,059.42 and 885.21 is: 1,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.09 : 3,059.42 = 885.21 : x
  2. Step 2: Convert to fraction form
    2,040.09/3,059.42 = 885.21/x
  3. Step 3: Cross multiply
    2,040.09x = 3,059.42 × 885.21
  4. Step 4: Simplify right side
    2,040.09x = 2,708,224.75
  5. Step 5: Solve for x
    x = 2,708,224.75/2,040.09
  6. Step 6: Final answer
    x = 1,327.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,041.09, 3,060.91 and 886.21
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.