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Finding the Fourth Proportional to 9,659,909.60, 14,489,864.40 and 8,614,815.20

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Solution

The fourth proportional to 9,659,909.60, 14,489,864.40 and 8,614,815.20 is: 12,922,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659,909.60 : 14,489,864.40 = 8,614,815.20 : x
  2. Step 2: Convert to fraction form
    9,659,909.60/14,489,864.40 = 8,614,815.20/x
  3. Step 3: Cross multiply
    9,659,909.60x = 14,489,864.40 × 8,614,815.20
  4. Step 4: Simplify right side
    9,659,909.60x = 124,827,504,079,058.88
  5. Step 5: Solve for x
    x = 124,827,504,079,058.88/9,659,909.60
  6. Step 6: Final answer
    x = 12,922,222.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.