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Finding the Fourth Proportional to 9,612.09, 14,387.09 and 8,702.73

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Solution

The fourth proportional to 9,612.09, 14,387.09 and 8,702.73 is: 13,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.09 : 14,387.09 = 8,702.73 : x
  2. Step 2: Convert to fraction form
    9,612.09/14,387.09 = 8,702.73/x
  3. Step 3: Cross multiply
    9,612.09x = 14,387.09 × 8,702.73
  4. Step 4: Simplify right side
    9,612.09x = 125,206,916.24
  5. Step 5: Solve for x
    x = 125,206,916.24/9,612.09
  6. Step 6: Final answer
    x = 13,025.98

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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.