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Finding the Fourth Proportional to 5,670.81, 8,506.49 and 1,775.25

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Solution

The fourth proportional to 5,670.81, 8,506.49 and 1,775.25 is: 2,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.81 : 8,506.49 = 1,775.25 : x
  2. Step 2: Convert to fraction form
    5,670.81/8,506.49 = 1,775.25/x
  3. Step 3: Cross multiply
    5,670.81x = 8,506.49 × 1,775.25
  4. Step 4: Simplify right side
    5,670.81x = 15,101,137.50
  5. Step 5: Solve for x
    x = 15,101,137.50/5,670.81
  6. Step 6: Final answer
    x = 2,662.96

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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.