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Finding the Fourth Proportional to 10,372,566.80, 15,558,850.20 and 10,372,566.80

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Solution

The fourth proportional to 10,372,566.80, 15,558,850.20 and 10,372,566.80 is: 15,558,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372,566.80 : 15,558,850.20 = 10,372,566.80 : x
  2. Step 2: Convert to fraction form
    10,372,566.80/15,558,850.20 = 10,372,566.80/x
  3. Step 3: Cross multiply
    10,372,566.80x = 15,558,850.20 × 10,372,566.80
  4. Step 4: Simplify right side
    10,372,566.80x = 161,385,213,030,693.38
  5. Step 5: Solve for x
    x = 161,385,213,030,693.38/10,372,566.80
  6. Step 6: Final answer
    x = 15,558,850.20

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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.