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Finding the Fourth Proportional to 65,532.85, 90,375.32 and 48,579.33

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Solution

The fourth proportional to 65,532.85, 90,375.32 and 48,579.33 is: 66,994.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,532.85 : 90,375.32 = 48,579.33 : x
  2. Step 2: Convert to fraction form
    65,532.85/90,375.32 = 48,579.33/x
  3. Step 3: Cross multiply
    65,532.85x = 90,375.32 × 48,579.33
  4. Step 4: Simplify right side
    65,532.85x = 4,390,372,494.14
  5. Step 5: Solve for x
    x = 4,390,372,494.14/65,532.85
  6. Step 6: Final answer
    x = 66,994.99

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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.