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Finding the Fourth Proportional to 6,564,862.80, 9,841,764.60 and 3,412,990.80

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Solution

The fourth proportional to 6,564,862.80, 9,841,764.60 and 3,412,990.80 is: 5,116,611.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,564,862.80 : 9,841,764.60 = 3,412,990.80 : x
  2. Step 2: Convert to fraction form
    6,564,862.80/9,841,764.60 = 3,412,990.80/x
  3. Step 3: Cross multiply
    6,564,862.80x = 9,841,764.60 × 3,412,990.80
  4. Step 4: Simplify right side
    6,564,862.80x = 33,589,852,035,565.68
  5. Step 5: Solve for x
    x = 33,589,852,035,565.68/6,564,862.80
  6. Step 6: Final answer
    x = 5,116,611.43

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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.