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Finding the Fourth Proportional to 64,912.56, 97,368.84 and 15,664.56

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Solution

The fourth proportional to 64,912.56, 97,368.84 and 15,664.56 is: 23,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,912.56 : 97,368.84 = 15,664.56 : x
  2. Step 2: Convert to fraction form
    64,912.56/97,368.84 = 15,664.56/x
  3. Step 3: Cross multiply
    64,912.56x = 97,368.84 × 15,664.56
  4. Step 4: Simplify right side
    64,912.56x = 1,525,240,036.31
  5. Step 5: Solve for x
    x = 1,525,240,036.31/64,912.56
  6. Step 6: Final answer
    x = 23,496.84

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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.