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Finding the Fourth Proportional to 10,652,057.10, 15,978,085.65 and 3,919,596.30

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Solution

The fourth proportional to 10,652,057.10, 15,978,085.65 and 3,919,596.30 is: 5,879,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652,057.10 : 15,978,085.65 = 3,919,596.30 : x
  2. Step 2: Convert to fraction form
    10,652,057.10/15,978,085.65 = 3,919,596.30/x
  3. Step 3: Cross multiply
    10,652,057.10x = 15,978,085.65 × 3,919,596.30
  4. Step 4: Simplify right side
    10,652,057.10x = 62,627,645,394,823.09
  5. Step 5: Solve for x
    x = 62,627,645,394,823.09/10,652,057.10
  6. Step 6: Final answer
    x = 5,879,394.45

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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.