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Finding the Fourth Proportional to 64,984.75, 97,462.14 and 20,603.23

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Solution

The fourth proportional to 64,984.75, 97,462.14 and 20,603.23 is: 30,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.75 : 97,462.14 = 20,603.23 : x
  2. Step 2: Convert to fraction form
    64,984.75/97,462.14 = 20,603.23/x
  3. Step 3: Cross multiply
    64,984.75x = 97,462.14 × 20,603.23
  4. Step 4: Simplify right side
    64,984.75x = 2,008,034,886.71
  5. Step 5: Solve for x
    x = 2,008,034,886.71/64,984.75
  6. Step 6: Final answer
    x = 30,900.09

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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.