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Finding the Fourth Proportional to 21,895.67, 32,848.11 and 7,103.43

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Solution

The fourth proportional to 21,895.67, 32,848.11 and 7,103.43 is: 10,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.67 : 32,848.11 = 7,103.43 : x
  2. Step 2: Convert to fraction form
    21,895.67/32,848.11 = 7,103.43/x
  3. Step 3: Cross multiply
    21,895.67x = 32,848.11 × 7,103.43
  4. Step 4: Simplify right side
    21,895.67x = 233,334,250.02
  5. Step 5: Solve for x
    x = 233,334,250.02/21,895.67
  6. Step 6: Final answer
    x = 10,656.64

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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.