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Finding the Fourth Proportional to 29,764.80, 44,256.24 and 28,987.20

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Solution

The fourth proportional to 29,764.80, 44,256.24 and 28,987.20 is: 43,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,764.80 : 44,256.24 = 28,987.20 : x
  2. Step 2: Convert to fraction form
    29,764.80/44,256.24 = 28,987.20/x
  3. Step 3: Cross multiply
    29,764.80x = 44,256.24 × 28,987.20
  4. Step 4: Simplify right side
    29,764.80x = 1,282,864,480.13
  5. Step 5: Solve for x
    x = 1,282,864,480.13/29,764.80
  6. Step 6: Final answer
    x = 43,100.05

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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.