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Finding the Fourth Proportional to 21,741.30, 32,611.95 and 6,159.06

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Solution

The fourth proportional to 21,741.30, 32,611.95 and 6,159.06 is: 9,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.30 : 32,611.95 = 6,159.06 : x
  2. Step 2: Convert to fraction form
    21,741.30/32,611.95 = 6,159.06/x
  3. Step 3: Cross multiply
    21,741.30x = 32,611.95 × 6,159.06
  4. Step 4: Simplify right side
    21,741.30x = 200,858,956.77
  5. Step 5: Solve for x
    x = 200,858,956.77/21,741.30
  6. Step 6: Final answer
    x = 9,238.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.