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Finding the Fourth Proportional to 8,712.12, 12,016.14 and 6,058.20

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Solution

The fourth proportional to 8,712.12, 12,016.14 and 6,058.20 is: 8,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.12 : 12,016.14 = 6,058.20 : x
  2. Step 2: Convert to fraction form
    8,712.12/12,016.14 = 6,058.20/x
  3. Step 3: Cross multiply
    8,712.12x = 12,016.14 × 6,058.20
  4. Step 4: Simplify right side
    8,712.12x = 72,796,179.35
  5. Step 5: Solve for x
    x = 72,796,179.35/8,712.12
  6. Step 6: Final answer
    x = 8,355.74

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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.