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Finding the Fourth Proportional to 61,389.60, 92,084.64 and 17,019.84

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Solution

The fourth proportional to 61,389.60, 92,084.64 and 17,019.84 is: 25,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,389.60 : 92,084.64 = 17,019.84 : x
  2. Step 2: Convert to fraction form
    61,389.60/92,084.64 = 17,019.84/x
  3. Step 3: Cross multiply
    61,389.60x = 92,084.64 × 17,019.84
  4. Step 4: Simplify right side
    61,389.60x = 1,567,265,839.26
  5. Step 5: Solve for x
    x = 1,567,265,839.26/61,389.60
  6. Step 6: Final answer
    x = 25,529.83

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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.