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Finding the Fourth Proportional to 14,990.02, 20,683.01 and 8,699.02

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Solution

The fourth proportional to 14,990.02, 20,683.01 and 8,699.02 is: 12,002.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.02 : 20,683.01 = 8,699.02 : x
  2. Step 2: Convert to fraction form
    14,990.02/20,683.01 = 8,699.02/x
  3. Step 3: Cross multiply
    14,990.02x = 20,683.01 × 8,699.02
  4. Step 4: Simplify right side
    14,990.02x = 179,921,917.65
  5. Step 5: Solve for x
    x = 179,921,917.65/14,990.02
  6. Step 6: Final answer
    x = 12,002.78

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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.