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Finding the Fourth Proportional to 21,741.83, 32,611.72 and 7,701.63

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Solution

The fourth proportional to 21,741.83, 32,611.72 and 7,701.63 is: 11,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.83 : 32,611.72 = 7,701.63 : x
  2. Step 2: Convert to fraction form
    21,741.83/32,611.72 = 7,701.63/x
  3. Step 3: Cross multiply
    21,741.83x = 32,611.72 × 7,701.63
  4. Step 4: Simplify right side
    21,741.83x = 251,163,401.10
  5. Step 5: Solve for x
    x = 251,163,401.10/21,741.83
  6. Step 6: Final answer
    x = 11,552.08

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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.