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Finding the Fourth Proportional to 11,964.60, 16,486.18 and 11,134.12

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Solution

The fourth proportional to 11,964.60, 16,486.18 and 11,134.12 is: 15,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.60 : 16,486.18 = 11,134.12 : x
  2. Step 2: Convert to fraction form
    11,964.60/16,486.18 = 11,134.12/x
  3. Step 3: Cross multiply
    11,964.60x = 16,486.18 × 11,134.12
  4. Step 4: Simplify right side
    11,964.60x = 183,559,106.46
  5. Step 5: Solve for x
    x = 183,559,106.46/11,964.60
  6. Step 6: Final answer
    x = 15,341.85

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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.