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Finding the Fourth Proportional to 7,876,359.90, 11,795,877.45 and 7,876,359.90

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Solution

The fourth proportional to 7,876,359.90, 11,795,877.45 and 7,876,359.90 is: 11,795,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,359.90 : 11,795,877.45 = 7,876,359.90 : x
  2. Step 2: Convert to fraction form
    7,876,359.90/11,795,877.45 = 7,876,359.90/x
  3. Step 3: Cross multiply
    7,876,359.90x = 11,795,877.45 × 7,876,359.90
  4. Step 4: Simplify right side
    7,876,359.90x = 92,908,576,132,494.25
  5. Step 5: Solve for x
    x = 92,908,576,132,494.25/7,876,359.90
  6. Step 6: Final answer
    x = 11,795,877.45

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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.