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Finding the Fourth Proportional to 61,353.60, 92,017.80 and 16,969.20

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Solution

The fourth proportional to 61,353.60, 92,017.80 and 16,969.20 is: 25,450.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,353.60 : 92,017.80 = 16,969.20 : x
  2. Step 2: Convert to fraction form
    61,353.60/92,017.80 = 16,969.20/x
  3. Step 3: Cross multiply
    61,353.60x = 92,017.80 × 16,969.20
  4. Step 4: Simplify right side
    61,353.60x = 1,561,468,451.76
  5. Step 5: Solve for x
    x = 1,561,468,451.76/61,353.60
  6. Step 6: Final answer
    x = 25,450.32

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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.