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Finding the Fourth Proportional to 8,671.80, 11,965.38 and 6,018.36

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Solution

The fourth proportional to 8,671.80, 11,965.38 and 6,018.36 is: 8,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.80 : 11,965.38 = 6,018.36 : x
  2. Step 2: Convert to fraction form
    8,671.80/11,965.38 = 6,018.36/x
  3. Step 3: Cross multiply
    8,671.80x = 11,965.38 × 6,018.36
  4. Step 4: Simplify right side
    8,671.80x = 72,011,964.38
  5. Step 5: Solve for x
    x = 72,011,964.38/8,671.80
  6. Step 6: Final answer
    x = 8,304.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.