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Finding the Fourth Proportional to 63,964.60, 89,433.80 and 63,964.60

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Solution

The fourth proportional to 63,964.60, 89,433.80 and 63,964.60 is: 89,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,964.60 : 89,433.80 = 63,964.60 : x
  2. Step 2: Convert to fraction form
    63,964.60/89,433.80 = 63,964.60/x
  3. Step 3: Cross multiply
    63,964.60x = 89,433.80 × 63,964.60
  4. Step 4: Simplify right side
    63,964.60x = 5,720,597,243.48
  5. Step 5: Solve for x
    x = 5,720,597,243.48/63,964.60
  6. Step 6: Final answer
    x = 89,433.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.