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Finding the Fourth Proportional to 64,626.76, 89,200.74 and 39,497.32

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Solution

The fourth proportional to 64,626.76, 89,200.74 and 39,497.32 is: 54,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,626.76 : 89,200.74 = 39,497.32 : x
  2. Step 2: Convert to fraction form
    64,626.76/89,200.74 = 39,497.32/x
  3. Step 3: Cross multiply
    64,626.76x = 89,200.74 × 39,497.32
  4. Step 4: Simplify right side
    64,626.76x = 3,523,190,172.02
  5. Step 5: Solve for x
    x = 3,523,190,172.02/64,626.76
  6. Step 6: Final answer
    x = 54,515.96

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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.