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Finding the Fourth Proportional to 64,211.60, 96,317.40 and 44,512.40

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Solution

The fourth proportional to 64,211.60, 96,317.40 and 44,512.40 is: 66,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,211.60 : 96,317.40 = 44,512.40 : x
  2. Step 2: Convert to fraction form
    64,211.60/96,317.40 = 44,512.40/x
  3. Step 3: Cross multiply
    64,211.60x = 96,317.40 × 44,512.40
  4. Step 4: Simplify right side
    64,211.60x = 4,287,318,635.76
  5. Step 5: Solve for x
    x = 4,287,318,635.76/64,211.60
  6. Step 6: Final answer
    x = 66,768.60

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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.