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Finding the Fourth Proportional to 8,691,014.90, 12,192,615.10 and 8,691,014.90

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Solution

The fourth proportional to 8,691,014.90, 12,192,615.10 and 8,691,014.90 is: 12,192,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,014.90 : 12,192,615.10 = 8,691,014.90 : x
  2. Step 2: Convert to fraction form
    8,691,014.90/12,192,615.10 = 8,691,014.90/x
  3. Step 3: Cross multiply
    8,691,014.90x = 12,192,615.10 × 8,691,014.90
  4. Step 4: Simplify right side
    8,691,014.90x = 105,966,199,504,064.98
  5. Step 5: Solve for x
    x = 105,966,199,504,064.98/8,691,014.90
  6. Step 6: Final answer
    x = 12,192,615.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.