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Finding the Fourth Proportional to 20,652.74, 30,980.28 and 5,860.50

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Solution

The fourth proportional to 20,652.74, 30,980.28 and 5,860.50 is: 8,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.74 : 30,980.28 = 5,860.50 : x
  2. Step 2: Convert to fraction form
    20,652.74/30,980.28 = 5,860.50/x
  3. Step 3: Cross multiply
    20,652.74x = 30,980.28 × 5,860.50
  4. Step 4: Simplify right side
    20,652.74x = 181,559,930.94
  5. Step 5: Solve for x
    x = 181,559,930.94/20,652.74
  6. Step 6: Final answer
    x = 8,791.08

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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.