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Finding the Fourth Proportional to 5,274,179.70, 7,890,274.35 and 4,572,006.90

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Solution

The fourth proportional to 5,274,179.70, 7,890,274.35 and 4,572,006.90 is: 6,839,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274,179.70 : 7,890,274.35 = 4,572,006.90 : x
  2. Step 2: Convert to fraction form
    5,274,179.70/7,890,274.35 = 4,572,006.90/x
  3. Step 3: Cross multiply
    5,274,179.70x = 7,890,274.35 × 4,572,006.90
  4. Step 4: Simplify right side
    5,274,179.70x = 36,074,388,771,093.02
  5. Step 5: Solve for x
    x = 36,074,388,771,093.02/5,274,179.70
  6. Step 6: Final answer
    x = 6,839,810.33

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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.