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Finding the Fourth Proportional to 38,004.80, 56,796.80 and 28,029.85

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Solution

The fourth proportional to 38,004.80, 56,796.80 and 28,029.85 is: 41,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,004.80 : 56,796.80 = 28,029.85 : x
  2. Step 2: Convert to fraction form
    38,004.80/56,796.80 = 28,029.85/x
  3. Step 3: Cross multiply
    38,004.80x = 56,796.80 × 28,029.85
  4. Step 4: Simplify right side
    38,004.80x = 1,592,005,502.34
  5. Step 5: Solve for x
    x = 1,592,005,502.34/38,004.80
  6. Step 6: Final answer
    x = 41,889.60

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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.