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Finding the Fourth Proportional to 11,894.64, 16,398.58 and 10,208.76

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Solution

The fourth proportional to 11,894.64, 16,398.58 and 10,208.76 is: 14,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.64 : 16,398.58 = 10,208.76 : x
  2. Step 2: Convert to fraction form
    11,894.64/16,398.58 = 10,208.76/x
  3. Step 3: Cross multiply
    11,894.64x = 16,398.58 × 10,208.76
  4. Step 4: Simplify right side
    11,894.64x = 167,409,167.56
  5. Step 5: Solve for x
    x = 167,409,167.56/11,894.64
  6. Step 6: Final answer
    x = 14,074.34

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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.