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Finding the Fourth Proportional to 64,708.64, 97,063.02 and 20,339.27

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Solution

The fourth proportional to 64,708.64, 97,063.02 and 20,339.27 is: 30,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.64 : 97,063.02 = 20,339.27 : x
  2. Step 2: Convert to fraction form
    64,708.64/97,063.02 = 20,339.27/x
  3. Step 3: Cross multiply
    64,708.64x = 97,063.02 × 20,339.27
  4. Step 4: Simplify right side
    64,708.64x = 1,974,190,485.48
  5. Step 5: Solve for x
    x = 1,974,190,485.48/64,708.64
  6. Step 6: Final answer
    x = 30,508.92

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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.