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Finding the Fourth Proportional to 20,655.60, 30,973.73 and 7,506.24

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Solution

The fourth proportional to 20,655.60, 30,973.73 and 7,506.24 is: 11,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.60 : 30,973.73 = 7,506.24 : x
  2. Step 2: Convert to fraction form
    20,655.60/30,973.73 = 7,506.24/x
  3. Step 3: Cross multiply
    20,655.60x = 30,973.73 × 7,506.24
  4. Step 4: Simplify right side
    20,655.60x = 232,496,213.54
  5. Step 5: Solve for x
    x = 232,496,213.54/20,655.60
  6. Step 6: Final answer
    x = 11,255.84

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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.