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Finding the Fourth Proportional to 64,704.52, 97,050.34 and 20,330.08

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Solution

The fourth proportional to 64,704.52, 97,050.34 and 20,330.08 is: 30,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.52 : 97,050.34 = 20,330.08 : x
  2. Step 2: Convert to fraction form
    64,704.52/97,050.34 = 20,330.08/x
  3. Step 3: Cross multiply
    64,704.52x = 97,050.34 × 20,330.08
  4. Step 4: Simplify right side
    64,704.52x = 1,973,041,176.23
  5. Step 5: Solve for x
    x = 1,973,041,176.23/64,704.52
  6. Step 6: Final answer
    x = 30,493.10

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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.