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Finding the Fourth Proportional to 17,899.76, 24,714.02 and 11,188.40

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Solution

The fourth proportional to 17,899.76, 24,714.02 and 11,188.40 is: 15,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899.76 : 24,714.02 = 11,188.40 : x
  2. Step 2: Convert to fraction form
    17,899.76/24,714.02 = 11,188.40/x
  3. Step 3: Cross multiply
    17,899.76x = 24,714.02 × 11,188.40
  4. Step 4: Simplify right side
    17,899.76x = 276,510,341.37
  5. Step 5: Solve for x
    x = 276,510,341.37/17,899.76
  6. Step 6: Final answer
    x = 15,447.71

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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.