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Finding the Fourth Proportional to 64,914.54, 97,371.81 and 15,666.54

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Solution

The fourth proportional to 64,914.54, 97,371.81 and 15,666.54 is: 23,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,914.54 : 97,371.81 = 15,666.54 : x
  2. Step 2: Convert to fraction form
    64,914.54/97,371.81 = 15,666.54/x
  3. Step 3: Cross multiply
    64,914.54x = 97,371.81 × 15,666.54
  4. Step 4: Simplify right side
    64,914.54x = 1,525,479,356.24
  5. Step 5: Solve for x
    x = 1,525,479,356.24/64,914.54
  6. Step 6: Final answer
    x = 23,499.81

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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.