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Finding the Fourth Proportional to 61,431.40, 92,124.06 and 26,353

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Solution

The fourth proportional to 61,431.40, 92,124.06 and 26,353 is: 39,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431.40 : 92,124.06 = 26,353 : x
  2. Step 2: Convert to fraction form
    61,431.40/92,124.06 = 26,353/x
  3. Step 3: Cross multiply
    61,431.40x = 92,124.06 × 26,353
  4. Step 4: Simplify right side
    61,431.40x = 2,427,745,353.18
  5. Step 5: Solve for x
    x = 2,427,745,353.18/61,431.40
  6. Step 6: Final answer
    x = 39,519.62

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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.