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Finding the Fourth Proportional to 18,695,194.85, 25,803,673.61 and 10,962,728.30

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Solution

The fourth proportional to 18,695,194.85, 25,803,673.61 and 10,962,728.30 is: 15,131,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,194.85 : 25,803,673.61 = 10,962,728.30 : x
  2. Step 2: Convert to fraction form
    18,695,194.85/25,803,673.61 = 10,962,728.30/x
  3. Step 3: Cross multiply
    18,695,194.85x = 25,803,673.61 × 10,962,728.30
  4. Step 4: Simplify right side
    18,695,194.85x = 282,878,662,938,005.69
  5. Step 5: Solve for x
    x = 282,878,662,938,005.69/18,695,194.85
  6. Step 6: Final answer
    x = 15,131,089.31

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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.