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Finding the Fourth Proportional to 8,581,010.40, 12,860,456.40 and 6,576,530.40

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Solution

The fourth proportional to 8,581,010.40, 12,860,456.40 and 6,576,530.40 is: 9,856,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581,010.40 : 12,860,456.40 = 6,576,530.40 : x
  2. Step 2: Convert to fraction form
    8,581,010.40/12,860,456.40 = 6,576,530.40/x
  3. Step 3: Cross multiply
    8,581,010.40x = 12,860,456.40 × 6,576,530.40
  4. Step 4: Simplify right side
    8,581,010.40x = 84,577,182,472,474.56
  5. Step 5: Solve for x
    x = 84,577,182,472,474.56/8,581,010.40
  6. Step 6: Final answer
    x = 9,856,319.77

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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.