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Finding the Fourth Proportional to 3,588.67, 5,379.46 and 1,509.20

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Solution

The fourth proportional to 3,588.67, 5,379.46 and 1,509.20 is: 2,262.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.67 : 5,379.46 = 1,509.20 : x
  2. Step 2: Convert to fraction form
    3,588.67/5,379.46 = 1,509.20/x
  3. Step 3: Cross multiply
    3,588.67x = 5,379.46 × 1,509.20
  4. Step 4: Simplify right side
    3,588.67x = 8,118,681.03
  5. Step 5: Solve for x
    x = 8,118,681.03/3,588.67
  6. Step 6: Final answer
    x = 2,262.31

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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.