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Finding the Fourth Proportional to 14,658,964.91, 20,229,363.69 and 8,043,596.77

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Solution

The fourth proportional to 14,658,964.91, 20,229,363.69 and 8,043,596.77 is: 11,100,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658,964.91 : 20,229,363.69 = 8,043,596.77 : x
  2. Step 2: Convert to fraction form
    14,658,964.91/20,229,363.69 = 8,043,596.77/x
  3. Step 3: Cross multiply
    14,658,964.91x = 20,229,363.69 × 8,043,596.77
  4. Step 4: Simplify right side
    14,658,964.91x = 162,716,844,477,114.03
  5. Step 5: Solve for x
    x = 162,716,844,477,114.03/14,658,964.91
  6. Step 6: Final answer
    x = 11,100,159.22

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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.