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Finding the Fourth Proportional to 8,607.90, 12,908.01 and 2,450.46

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Solution

The fourth proportional to 8,607.90, 12,908.01 and 2,450.46 is: 3,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.90 : 12,908.01 = 2,450.46 : x
  2. Step 2: Convert to fraction form
    8,607.90/12,908.01 = 2,450.46/x
  3. Step 3: Cross multiply
    8,607.90x = 12,908.01 × 2,450.46
  4. Step 4: Simplify right side
    8,607.90x = 31,630,562.18
  5. Step 5: Solve for x
    x = 31,630,562.18/8,607.90
  6. Step 6: Final answer
    x = 3,674.60

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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.