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Finding the Fourth Proportional to 64,913.63, 97,370.44 and 15,665.63

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Solution

The fourth proportional to 64,913.63, 97,370.44 and 15,665.63 is: 23,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,913.63 : 97,370.44 = 15,665.63 : x
  2. Step 2: Convert to fraction form
    64,913.63/97,370.44 = 15,665.63/x
  3. Step 3: Cross multiply
    64,913.63x = 97,370.44 × 15,665.63
  4. Step 4: Simplify right side
    64,913.63x = 1,525,368,759.96
  5. Step 5: Solve for x
    x = 1,525,368,759.96/64,913.63
  6. Step 6: Final answer
    x = 23,498.44

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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.