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Finding the Fourth Proportional to 8,702.06, 12,008.68 and 4,723.08

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Solution

The fourth proportional to 8,702.06, 12,008.68 and 4,723.08 is: 6,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.06 : 12,008.68 = 4,723.08 : x
  2. Step 2: Convert to fraction form
    8,702.06/12,008.68 = 4,723.08/x
  3. Step 3: Cross multiply
    8,702.06x = 12,008.68 × 4,723.08
  4. Step 4: Simplify right side
    8,702.06x = 56,718,014.10
  5. Step 5: Solve for x
    x = 56,718,014.10/8,702.06
  6. Step 6: Final answer
    x = 6,517.77

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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.