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Finding the Fourth Proportional to 73,279.32, 109,845.16 and 28,888.92

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Solution

The fourth proportional to 73,279.32, 109,845.16 and 28,888.92 is: 43,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,279.32 : 109,845.16 = 28,888.92 : x
  2. Step 2: Convert to fraction form
    73,279.32/109,845.16 = 28,888.92/x
  3. Step 3: Cross multiply
    73,279.32x = 109,845.16 × 28,888.92
  4. Step 4: Simplify right side
    73,279.32x = 3,173,308,039.63
  5. Step 5: Solve for x
    x = 3,173,308,039.63/73,279.32
  6. Step 6: Final answer
    x = 43,304.28

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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.