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Finding the Fourth Proportional to 64,878.40, 97,279.20 and 33,774.40

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Solution

The fourth proportional to 64,878.40, 97,279.20 and 33,774.40 is: 50,641.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,878.40 : 97,279.20 = 33,774.40 : x
  2. Step 2: Convert to fraction form
    64,878.40/97,279.20 = 33,774.40/x
  3. Step 3: Cross multiply
    64,878.40x = 97,279.20 × 33,774.40
  4. Step 4: Simplify right side
    64,878.40x = 3,285,546,612.48
  5. Step 5: Solve for x
    x = 3,285,546,612.48/64,878.40
  6. Step 6: Final answer
    x = 50,641.61

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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.