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Finding the Fourth Proportional to 64,466.76, 88,964.40 and 36,172.56

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Solution

The fourth proportional to 64,466.76, 88,964.40 and 36,172.56 is: 49,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,466.76 : 88,964.40 = 36,172.56 : x
  2. Step 2: Convert to fraction form
    64,466.76/88,964.40 = 36,172.56/x
  3. Step 3: Cross multiply
    64,466.76x = 88,964.40 × 36,172.56
  4. Step 4: Simplify right side
    64,466.76x = 3,218,070,096.86
  5. Step 5: Solve for x
    x = 3,218,070,096.86/64,466.76
  6. Step 6: Final answer
    x = 49,918.28

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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.