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Finding the Fourth Proportional to 21,895.42, 32,847.74 and 7,103.18

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Solution

The fourth proportional to 21,895.42, 32,847.74 and 7,103.18 is: 10,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.42 : 32,847.74 = 7,103.18 : x
  2. Step 2: Convert to fraction form
    21,895.42/32,847.74 = 7,103.18/x
  3. Step 3: Cross multiply
    21,895.42x = 32,847.74 × 7,103.18
  4. Step 4: Simplify right side
    21,895.42x = 233,323,409.81
  5. Step 5: Solve for x
    x = 233,323,409.81/21,895.42
  6. Step 6: Final answer
    x = 10,656.27

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