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Finding the Fourth Proportional to 61,669.40, 92,471.70 and 22,220.60

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Solution

The fourth proportional to 61,669.40, 92,471.70 and 22,220.60 is: 33,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,669.40 : 92,471.70 = 22,220.60 : x
  2. Step 2: Convert to fraction form
    61,669.40/92,471.70 = 22,220.60/x
  3. Step 3: Cross multiply
    61,669.40x = 92,471.70 × 22,220.60
  4. Step 4: Simplify right side
    61,669.40x = 2,054,776,657.02
  5. Step 5: Solve for x
    x = 2,054,776,657.02/61,669.40
  6. Step 6: Final answer
    x = 33,319.23

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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.