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Finding the Fourth Proportional to 12,066.70, 18,103.08 and 4,669.15

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Solution

The fourth proportional to 12,066.70, 18,103.08 and 4,669.15 is: 7,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,066.70 : 18,103.08 = 4,669.15 : x
  2. Step 2: Convert to fraction form
    12,066.70/18,103.08 = 4,669.15/x
  3. Step 3: Cross multiply
    12,066.70x = 18,103.08 × 4,669.15
  4. Step 4: Simplify right side
    12,066.70x = 84,525,995.98
  5. Step 5: Solve for x
    x = 84,525,995.98/12,066.70
  6. Step 6: Final answer
    x = 7,004.90

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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.