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Finding the Fourth Proportional to 5,586.48, 8,379.48 and 1,690.72

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Solution

The fourth proportional to 5,586.48, 8,379.48 and 1,690.72 is: 2,536.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.48 : 8,379.48 = 1,690.72 : x
  2. Step 2: Convert to fraction form
    5,586.48/8,379.48 = 1,690.72/x
  3. Step 3: Cross multiply
    5,586.48x = 8,379.48 × 1,690.72
  4. Step 4: Simplify right side
    5,586.48x = 14,167,354.43
  5. Step 5: Solve for x
    x = 14,167,354.43/5,586.48
  6. Step 6: Final answer
    x = 2,536.01

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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.