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Finding the Fourth Proportional to 22,032.66, 33,034.64 and 7,990.07

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Solution

The fourth proportional to 22,032.66, 33,034.64 and 7,990.07 is: 11,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,032.66 : 33,034.64 = 7,990.07 : x
  2. Step 2: Convert to fraction form
    22,032.66/33,034.64 = 7,990.07/x
  3. Step 3: Cross multiply
    22,032.66x = 33,034.64 × 7,990.07
  4. Step 4: Simplify right side
    22,032.66x = 263,948,973.81
  5. Step 5: Solve for x
    x = 263,948,973.81/22,032.66
  6. Step 6: Final answer
    x = 11,979.90

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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.