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Finding the Fourth Proportional to 14,741.56, 20,343.78 and 8,368.02

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Solution

The fourth proportional to 14,741.56, 20,343.78 and 8,368.02 is: 11,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.56 : 20,343.78 = 8,368.02 : x
  2. Step 2: Convert to fraction form
    14,741.56/20,343.78 = 8,368.02/x
  3. Step 3: Cross multiply
    14,741.56x = 20,343.78 × 8,368.02
  4. Step 4: Simplify right side
    14,741.56x = 170,237,157.92
  5. Step 5: Solve for x
    x = 170,237,157.92/14,741.56
  6. Step 6: Final answer
    x = 11,548.11

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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.