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Finding the Fourth Proportional to 25,224, 34,751.16 and 19,916.88

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Solution

The fourth proportional to 25,224, 34,751.16 and 19,916.88 is: 27,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,224 : 34,751.16 = 19,916.88 : x
  2. Step 2: Convert to fraction form
    25,224/34,751.16 = 19,916.88/x
  3. Step 3: Cross multiply
    25,224x = 34,751.16 × 19,916.88
  4. Step 4: Simplify right side
    25,224x = 692,134,683.58
  5. Step 5: Solve for x
    x = 692,134,683.58/25,224
  6. Step 6: Final answer
    x = 27,439.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.