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Finding the Fourth Proportional to 11,763.64, 16,234.04 and 6,458.64

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Solution

The fourth proportional to 11,763.64, 16,234.04 and 6,458.64 is: 8,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.64 : 16,234.04 = 6,458.64 : x
  2. Step 2: Convert to fraction form
    11,763.64/16,234.04 = 6,458.64/x
  3. Step 3: Cross multiply
    11,763.64x = 16,234.04 × 6,458.64
  4. Step 4: Simplify right side
    11,763.64x = 104,849,820.11
  5. Step 5: Solve for x
    x = 104,849,820.11/11,763.64
  6. Step 6: Final answer
    x = 8,913.04

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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.