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Finding the Fourth Proportional to 64,865.04, 97,295.76 and 18,116.64

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Solution

The fourth proportional to 64,865.04, 97,295.76 and 18,116.64 is: 27,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,865.04 : 97,295.76 = 18,116.64 : x
  2. Step 2: Convert to fraction form
    64,865.04/97,295.76 = 18,116.64/x
  3. Step 3: Cross multiply
    64,865.04x = 97,295.76 × 18,116.64
  4. Step 4: Simplify right side
    64,865.04x = 1,762,672,257.45
  5. Step 5: Solve for x
    x = 1,762,672,257.45/64,865.04
  6. Step 6: Final answer
    x = 27,174.46

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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.