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Finding the Fourth Proportional to 10,652,040.90, 15,978,061.35 and 4,263,279.30

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Solution

The fourth proportional to 10,652,040.90, 15,978,061.35 and 4,263,279.30 is: 6,394,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652,040.90 : 15,978,061.35 = 4,263,279.30 : x
  2. Step 2: Convert to fraction form
    10,652,040.90/15,978,061.35 = 4,263,279.30/x
  3. Step 3: Cross multiply
    10,652,040.90x = 15,978,061.35 × 4,263,279.30
  4. Step 4: Simplify right side
    10,652,040.90x = 68,118,938,207,585.05
  5. Step 5: Solve for x
    x = 68,118,938,207,585.05/10,652,040.90
  6. Step 6: Final answer
    x = 6,394,918.95

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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.