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Finding the Fourth Proportional to 64,956.40, 97,434.60 and 36,865.60

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Solution

The fourth proportional to 64,956.40, 97,434.60 and 36,865.60 is: 55,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,956.40 : 97,434.60 = 36,865.60 : x
  2. Step 2: Convert to fraction form
    64,956.40/97,434.60 = 36,865.60/x
  3. Step 3: Cross multiply
    64,956.40x = 97,434.60 × 36,865.60
  4. Step 4: Simplify right side
    64,956.40x = 3,591,984,989.76
  5. Step 5: Solve for x
    x = 3,591,984,989.76/64,956.40
  6. Step 6: Final answer
    x = 55,298.40

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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.