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Finding the Fourth Proportional to 52,255.77, 78,329.97 and 20,652.99

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Solution

The fourth proportional to 52,255.77, 78,329.97 and 20,652.99 is: 30,958.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,255.77 : 78,329.97 = 20,652.99 : x
  2. Step 2: Convert to fraction form
    52,255.77/78,329.97 = 20,652.99/x
  3. Step 3: Cross multiply
    52,255.77x = 78,329.97 × 20,652.99
  4. Step 4: Simplify right side
    52,255.77x = 1,617,748,087.11
  5. Step 5: Solve for x
    x = 1,617,748,087.11/52,255.77
  6. Step 6: Final answer
    x = 30,958.27

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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.