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Finding the Fourth Proportional to 64,961.80, 97,475.10 and 36,903.40

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Solution

The fourth proportional to 64,961.80, 97,475.10 and 36,903.40 is: 55,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,961.80 : 97,475.10 = 36,903.40 : x
  2. Step 2: Convert to fraction form
    64,961.80/97,475.10 = 36,903.40/x
  3. Step 3: Cross multiply
    64,961.80x = 97,475.10 × 36,903.40
  4. Step 4: Simplify right side
    64,961.80x = 3,597,162,605.34
  5. Step 5: Solve for x
    x = 3,597,162,605.34/64,961.80
  6. Step 6: Final answer
    x = 55,373.51

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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.