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Finding the Fourth Proportional to 8,584,958.90, 12,877,438.35 and 2,195,711.30

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Solution

The fourth proportional to 8,584,958.90, 12,877,438.35 and 2,195,711.30 is: 3,293,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584,958.90 : 12,877,438.35 = 2,195,711.30 : x
  2. Step 2: Convert to fraction form
    8,584,958.90/12,877,438.35 = 2,195,711.30/x
  3. Step 3: Cross multiply
    8,584,958.90x = 12,877,438.35 × 2,195,711.30
  4. Step 4: Simplify right side
    8,584,958.90x = 28,275,136,900,148.35
  5. Step 5: Solve for x
    x = 28,275,136,900,148.35/8,584,958.90
  6. Step 6: Final answer
    x = 3,293,566.95

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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.