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Finding the Fourth Proportional to 16,898,656.80, 25,372,868.40 and 13,116,410.40

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Solution

The fourth proportional to 16,898,656.80, 25,372,868.40 and 13,116,410.40 is: 19,693,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898,656.80 : 25,372,868.40 = 13,116,410.40 : x
  2. Step 2: Convert to fraction form
    16,898,656.80/25,372,868.40 = 13,116,410.40/x
  3. Step 3: Cross multiply
    16,898,656.80x = 25,372,868.40 × 13,116,410.40
  4. Step 4: Simplify right side
    16,898,656.80x = 332,800,954,959,591.38
  5. Step 5: Solve for x
    x = 332,800,954,959,591.38/16,898,656.80
  6. Step 6: Final answer
    x = 19,693,929.46

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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.