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Finding the Fourth Proportional to 35,915.93, 53,892.35 and 15,939.11

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Solution

The fourth proportional to 35,915.93, 53,892.35 and 15,939.11 is: 23,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.93 : 53,892.35 = 15,939.11 : x
  2. Step 2: Convert to fraction form
    35,915.93/53,892.35 = 15,939.11/x
  3. Step 3: Cross multiply
    35,915.93x = 53,892.35 × 15,939.11
  4. Step 4: Simplify right side
    35,915.93x = 858,996,015.11
  5. Step 5: Solve for x
    x = 858,996,015.11/35,915.93
  6. Step 6: Final answer
    x = 23,916.85

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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.