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Finding the Fourth Proportional to 65,961,059.71, 91,026,369.65 and 36,592,392.98

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Solution

The fourth proportional to 65,961,059.71, 91,026,369.65 and 36,592,392.98 is: 50,497,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,961,059.71 : 91,026,369.65 = 36,592,392.98 : x
  2. Step 2: Convert to fraction form
    65,961,059.71/91,026,369.65 = 36,592,392.98/x
  3. Step 3: Cross multiply
    65,961,059.71x = 91,026,369.65 × 36,592,392.98
  4. Step 4: Simplify right side
    65,961,059.71x = 3,330,872,689,137,451
  5. Step 5: Solve for x
    x = 3,330,872,689,137,451/65,961,059.71
  6. Step 6: Final answer
    x = 50,497,561.80

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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.