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Finding the Fourth Proportional to 8,819,686.76, 12,171,012.90 and 4,952,238.44

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Solution

The fourth proportional to 8,819,686.76, 12,171,012.90 and 4,952,238.44 is: 6,834,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819,686.76 : 12,171,012.90 = 4,952,238.44 : x
  2. Step 2: Convert to fraction form
    8,819,686.76/12,171,012.90 = 4,952,238.44/x
  3. Step 3: Cross multiply
    8,819,686.76x = 12,171,012.90 × 4,952,238.44
  4. Step 4: Simplify right side
    8,819,686.76x = 60,273,757,937,115.88
  5. Step 5: Solve for x
    x = 60,273,757,937,115.88/8,819,686.76
  6. Step 6: Final answer
    x = 6,834,002.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.