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Finding the Fourth Proportional to 11,894.46, 16,417.74 and 7,179.05

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Solution

The fourth proportional to 11,894.46, 16,417.74 and 7,179.05 is: 9,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.46 : 16,417.74 = 7,179.05 : x
  2. Step 2: Convert to fraction form
    11,894.46/16,417.74 = 7,179.05/x
  3. Step 3: Cross multiply
    11,894.46x = 16,417.74 × 7,179.05
  4. Step 4: Simplify right side
    11,894.46x = 117,863,694.26
  5. Step 5: Solve for x
    x = 117,863,694.26/11,894.46
  6. Step 6: Final answer
    x = 9,909.13

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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.