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Finding the Fourth Proportional to 7,062,965.84, 9,747,957.86 and 4,311,248.42

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Solution

The fourth proportional to 7,062,965.84, 9,747,957.86 and 4,311,248.42 is: 5,950,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062,965.84 : 9,747,957.86 = 4,311,248.42 : x
  2. Step 2: Convert to fraction form
    7,062,965.84/9,747,957.86 = 4,311,248.42/x
  3. Step 3: Cross multiply
    7,062,965.84x = 9,747,957.86 × 4,311,248.42
  4. Step 4: Simplify right side
    7,062,965.84x = 42,025,867,851,855.55
  5. Step 5: Solve for x
    x = 42,025,867,851,855.55/7,062,965.84
  6. Step 6: Final answer
    x = 5,950,172.89

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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.