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Finding the Fourth Proportional to 61,281.70, 91,911.60 and 16,303.30

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Solution

The fourth proportional to 61,281.70, 91,911.60 and 16,303.30 is: 24,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.70 : 91,911.60 = 16,303.30 : x
  2. Step 2: Convert to fraction form
    61,281.70/91,911.60 = 16,303.30/x
  3. Step 3: Cross multiply
    61,281.70x = 91,911.60 × 16,303.30
  4. Step 4: Simplify right side
    61,281.70x = 1,498,462,388.28
  5. Step 5: Solve for x
    x = 1,498,462,388.28/61,281.70
  6. Step 6: Final answer
    x = 24,452.04

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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.