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Finding the Fourth Proportional to 20,197.79, 30,303.97 and 7,052.10

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Solution

The fourth proportional to 20,197.79, 30,303.97 and 7,052.10 is: 10,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.79 : 30,303.97 = 7,052.10 : x
  2. Step 2: Convert to fraction form
    20,197.79/30,303.97 = 7,052.10/x
  3. Step 3: Cross multiply
    20,197.79x = 30,303.97 × 7,052.10
  4. Step 4: Simplify right side
    20,197.79x = 213,706,535.23
  5. Step 5: Solve for x
    x = 213,706,535.23/20,197.79
  6. Step 6: Final answer
    x = 10,580.69

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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.