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Finding the Fourth Proportional to 61,236, 91,869.36 and 17,460

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Solution

The fourth proportional to 61,236, 91,869.36 and 17,460 is: 26,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,236 : 91,869.36 = 17,460 : x
  2. Step 2: Convert to fraction form
    61,236/91,869.36 = 17,460/x
  3. Step 3: Cross multiply
    61,236x = 91,869.36 × 17,460
  4. Step 4: Simplify right side
    61,236x = 1,604,039,025.60
  5. Step 5: Solve for x
    x = 1,604,039,025.60/61,236
  6. Step 6: Final answer
    x = 26,194.38

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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.