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Finding the Fourth Proportional to 8,417.72, 12,626.62 and 2,574.32

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Solution

The fourth proportional to 8,417.72, 12,626.62 and 2,574.32 is: 3,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.72 : 12,626.62 = 2,574.32 : x
  2. Step 2: Convert to fraction form
    8,417.72/12,626.62 = 2,574.32/x
  3. Step 3: Cross multiply
    8,417.72x = 12,626.62 × 2,574.32
  4. Step 4: Simplify right side
    8,417.72x = 32,504,890.83
  5. Step 5: Solve for x
    x = 32,504,890.83/8,417.72
  6. Step 6: Final answer
    x = 3,861.48

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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.