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Finding the Fourth Proportional to 14,991.83, 20,702.04 and 9,336.28

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Solution

The fourth proportional to 14,991.83, 20,702.04 and 9,336.28 is: 12,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.83 : 20,702.04 = 9,336.28 : x
  2. Step 2: Convert to fraction form
    14,991.83/20,702.04 = 9,336.28/x
  3. Step 3: Cross multiply
    14,991.83x = 20,702.04 × 9,336.28
  4. Step 4: Simplify right side
    14,991.83x = 193,280,042.01
  5. Step 5: Solve for x
    x = 193,280,042.01/14,991.83
  6. Step 6: Final answer
    x = 12,892.36

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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.