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Finding the Fourth Proportional to 35,420.41, 48,880.03 and 19,504.86

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Solution

The fourth proportional to 35,420.41, 48,880.03 and 19,504.86 is: 26,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.41 : 48,880.03 = 19,504.86 : x
  2. Step 2: Convert to fraction form
    35,420.41/48,880.03 = 19,504.86/x
  3. Step 3: Cross multiply
    35,420.41x = 48,880.03 × 19,504.86
  4. Step 4: Simplify right side
    35,420.41x = 953,398,141.95
  5. Step 5: Solve for x
    x = 953,398,141.95/35,420.41
  6. Step 6: Final answer
    x = 26,916.63

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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.