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Finding the Fourth Proportional to 43,978.15, 60,686.85 and 28,060.84

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Solution

The fourth proportional to 43,978.15, 60,686.85 and 28,060.84 is: 38,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,978.15 : 60,686.85 = 28,060.84 : x
  2. Step 2: Convert to fraction form
    43,978.15/60,686.85 = 28,060.84/x
  3. Step 3: Cross multiply
    43,978.15x = 60,686.85 × 28,060.84
  4. Step 4: Simplify right side
    43,978.15x = 1,702,923,987.95
  5. Step 5: Solve for x
    x = 1,702,923,987.95/43,978.15
  6. Step 6: Final answer
    x = 38,722.05

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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.