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Finding the Fourth Proportional to 6,642,911.70, 9,964,367.55 and 6,076,041.30

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Solution

The fourth proportional to 6,642,911.70, 9,964,367.55 and 6,076,041.30 is: 9,114,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,911.70 : 9,964,367.55 = 6,076,041.30 : x
  2. Step 2: Convert to fraction form
    6,642,911.70/9,964,367.55 = 6,076,041.30/x
  3. Step 3: Cross multiply
    6,642,911.70x = 9,964,367.55 × 6,076,041.30
  4. Step 4: Simplify right side
    6,642,911.70x = 60,543,908,762,179.82
  5. Step 5: Solve for x
    x = 60,543,908,762,179.82/6,642,911.70
  6. Step 6: Final answer
    x = 9,114,061.95

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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.