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Finding the Fourth Proportional to 28,673.44, 42,813.86 and 25,692.64

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Solution

The fourth proportional to 28,673.44, 42,813.86 and 25,692.64 is: 38,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.44 : 42,813.86 = 25,692.64 : x
  2. Step 2: Convert to fraction form
    28,673.44/42,813.86 = 25,692.64/x
  3. Step 3: Cross multiply
    28,673.44x = 42,813.86 × 25,692.64
  4. Step 4: Simplify right side
    28,673.44x = 1,100,001,091.99
  5. Step 5: Solve for x
    x = 1,100,001,091.99/28,673.44
  6. Step 6: Final answer
    x = 38,363.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.