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Finding the Fourth Proportional to 56,668.80, 84,830.40 and 33,225.60

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Solution

The fourth proportional to 56,668.80, 84,830.40 and 33,225.60 is: 49,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.80 : 84,830.40 = 33,225.60 : x
  2. Step 2: Convert to fraction form
    56,668.80/84,830.40 = 33,225.60/x
  3. Step 3: Cross multiply
    56,668.80x = 84,830.40 × 33,225.60
  4. Step 4: Simplify right side
    56,668.80x = 2,818,540,938.24
  5. Step 5: Solve for x
    x = 2,818,540,938.24/56,668.80
  6. Step 6: Final answer
    x = 49,737.09

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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.