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Finding the Fourth Proportional to 6,646,790.22, 9,972,505.17 and 2,098,543.02

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Solution

The fourth proportional to 6,646,790.22, 9,972,505.17 and 2,098,543.02 is: 3,148,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646,790.22 : 9,972,505.17 = 2,098,543.02 : x
  2. Step 2: Convert to fraction form
    6,646,790.22/9,972,505.17 = 2,098,543.02/x
  3. Step 3: Cross multiply
    6,646,790.22x = 9,972,505.17 × 2,098,543.02
  4. Step 4: Simplify right side
    6,646,790.22x = 20,927,731,116,417.41
  5. Step 5: Solve for x
    x = 20,927,731,116,417.41/6,646,790.22
  6. Step 6: Final answer
    x = 3,148,546.96

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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.