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Finding the Fourth Proportional to 61,460.80, 92,220.45 and 22,021.90

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Solution

The fourth proportional to 61,460.80, 92,220.45 and 22,021.90 is: 33,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,460.80 : 92,220.45 = 22,021.90 : x
  2. Step 2: Convert to fraction form
    61,460.80/92,220.45 = 22,021.90/x
  3. Step 3: Cross multiply
    61,460.80x = 92,220.45 × 22,021.90
  4. Step 4: Simplify right side
    61,460.80x = 2,030,869,527.86
  5. Step 5: Solve for x
    x = 2,030,869,527.86/61,460.80
  6. Step 6: Final answer
    x = 33,043.33

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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.