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Finding the Fourth Proportional to 28,094.60, 42,129.21 and 14,944.16

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Solution

The fourth proportional to 28,094.60, 42,129.21 and 14,944.16 is: 22,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.60 : 42,129.21 = 14,944.16 : x
  2. Step 2: Convert to fraction form
    28,094.60/42,129.21 = 14,944.16/x
  3. Step 3: Cross multiply
    28,094.60x = 42,129.21 × 14,944.16
  4. Step 4: Simplify right side
    28,094.60x = 629,585,654.91
  5. Step 5: Solve for x
    x = 629,585,654.91/28,094.60
  6. Step 6: Final answer
    x = 22,409.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.