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Finding the Fourth Proportional to 29,609.32, 40,821.06 and 28,692.04

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Solution

The fourth proportional to 29,609.32, 40,821.06 and 28,692.04 is: 39,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,609.32 : 40,821.06 = 28,692.04 : x
  2. Step 2: Convert to fraction form
    29,609.32/40,821.06 = 28,692.04/x
  3. Step 3: Cross multiply
    29,609.32x = 40,821.06 × 28,692.04
  4. Step 4: Simplify right side
    29,609.32x = 1,171,239,486.36
  5. Step 5: Solve for x
    x = 1,171,239,486.36/29,609.32
  6. Step 6: Final answer
    x = 39,556.45

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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.