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Finding the Fourth Proportional to 5,571.40, 8,357.10 and 2,283.40

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Solution

The fourth proportional to 5,571.40, 8,357.10 and 2,283.40 is: 3,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.40 : 8,357.10 = 2,283.40 : x
  2. Step 2: Convert to fraction form
    5,571.40/8,357.10 = 2,283.40/x
  3. Step 3: Cross multiply
    5,571.40x = 8,357.10 × 2,283.40
  4. Step 4: Simplify right side
    5,571.40x = 19,082,602.14
  5. Step 5: Solve for x
    x = 19,082,602.14/5,571.40
  6. Step 6: Final answer
    x = 3,425.10

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Double scale
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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.