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Finding the Fourth Proportional to 52,692.54, 72,716.76 and 28,820.76

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Solution

The fourth proportional to 52,692.54, 72,716.76 and 28,820.76 is: 39,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,692.54 : 72,716.76 = 28,820.76 : x
  2. Step 2: Convert to fraction form
    52,692.54/72,716.76 = 28,820.76/x
  3. Step 3: Cross multiply
    52,692.54x = 72,716.76 × 28,820.76
  4. Step 4: Simplify right side
    52,692.54x = 2,095,752,287.94
  5. Step 5: Solve for x
    x = 2,095,752,287.94/52,692.54
  6. Step 6: Final answer
    x = 39,773.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.