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Finding the Fourth Proportional to 9,073,205.80, 13,609,808.70 and 8,159,914.60

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Solution

The fourth proportional to 9,073,205.80, 13,609,808.70 and 8,159,914.60 is: 12,239,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,073,205.80 : 13,609,808.70 = 8,159,914.60 : x
  2. Step 2: Convert to fraction form
    9,073,205.80/13,609,808.70 = 8,159,914.60/x
  3. Step 3: Cross multiply
    9,073,205.80x = 13,609,808.70 × 8,159,914.60
  4. Step 4: Simplify right side
    9,073,205.80x = 111,054,876,714,337.02
  5. Step 5: Solve for x
    x = 111,054,876,714,337.02/9,073,205.80
  6. Step 6: Final answer
    x = 12,239,871.90

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Similar ratio
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1.5x scale

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.