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Finding the Fourth Proportional to 5,651,671.28, 7,799,511.12 and 3,237,689.84

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Solution

The fourth proportional to 5,651,671.28, 7,799,511.12 and 3,237,689.84 is: 4,468,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651,671.28 : 7,799,511.12 = 3,237,689.84 : x
  2. Step 2: Convert to fraction form
    5,651,671.28/7,799,511.12 = 3,237,689.84/x
  3. Step 3: Cross multiply
    5,651,671.28x = 7,799,511.12 × 3,237,689.84
  4. Step 4: Simplify right side
    5,651,671.28x = 25,252,397,910,191.02
  5. Step 5: Solve for x
    x = 25,252,397,910,191.02/5,651,671.28
  6. Step 6: Final answer
    x = 4,468,129.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.