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Finding the Fourth Proportional to 20,043.72, 30,070.44 and 6,003.72

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Solution

The fourth proportional to 20,043.72, 30,070.44 and 6,003.72 is: 9,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.72 : 30,070.44 = 6,003.72 : x
  2. Step 2: Convert to fraction form
    20,043.72/30,070.44 = 6,003.72/x
  3. Step 3: Cross multiply
    20,043.72x = 30,070.44 × 6,003.72
  4. Step 4: Simplify right side
    20,043.72x = 180,534,502.04
  5. Step 5: Solve for x
    x = 180,534,502.04/20,043.72
  6. Step 6: Final answer
    x = 9,007.04

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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.