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Finding the Fourth Proportional to 64,666.62, 97,004.02 and 20,295.12

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Solution

The fourth proportional to 64,666.62, 97,004.02 and 20,295.12 is: 30,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,666.62 : 97,004.02 = 20,295.12 : x
  2. Step 2: Convert to fraction form
    64,666.62/97,004.02 = 20,295.12/x
  3. Step 3: Cross multiply
    64,666.62x = 97,004.02 × 20,295.12
  4. Step 4: Simplify right side
    64,666.62x = 1,968,708,139.69
  5. Step 5: Solve for x
    x = 1,968,708,139.69/64,666.62
  6. Step 6: Final answer
    x = 30,443.96

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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.