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Finding the Fourth Proportional to 17,858.21, 24,642.67 and 9,899.76

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Solution

The fourth proportional to 17,858.21, 24,642.67 and 9,899.76 is: 13,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.21 : 24,642.67 = 9,899.76 : x
  2. Step 2: Convert to fraction form
    17,858.21/24,642.67 = 9,899.76/x
  3. Step 3: Cross multiply
    17,858.21x = 24,642.67 × 9,899.76
  4. Step 4: Simplify right side
    17,858.21x = 243,956,518.76
  5. Step 5: Solve for x
    x = 243,956,518.76/17,858.21
  6. Step 6: Final answer
    x = 13,660.75

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Similar ratio
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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.