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Finding the Fourth Proportional to 25,709.46, 38,476.50 and 21,554.16

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Solution

The fourth proportional to 25,709.46, 38,476.50 and 21,554.16 is: 32,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,709.46 : 38,476.50 = 21,554.16 : x
  2. Step 2: Convert to fraction form
    25,709.46/38,476.50 = 21,554.16/x
  3. Step 3: Cross multiply
    25,709.46x = 38,476.50 × 21,554.16
  4. Step 4: Simplify right side
    25,709.46x = 829,328,637.24
  5. Step 5: Solve for x
    x = 829,328,637.24/25,709.46
  6. Step 6: Final answer
    x = 32,257.72

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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.