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Finding the Fourth Proportional to 64,694.50, 97,041.80 and 17,947.42

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Solution

The fourth proportional to 64,694.50, 97,041.80 and 17,947.42 is: 26,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.50 : 97,041.80 = 17,947.42 : x
  2. Step 2: Convert to fraction form
    64,694.50/97,041.80 = 17,947.42/x
  3. Step 3: Cross multiply
    64,694.50x = 97,041.80 × 17,947.42
  4. Step 4: Simplify right side
    64,694.50x = 1,741,649,852.42
  5. Step 5: Solve for x
    x = 1,741,649,852.42/64,694.50
  6. Step 6: Final answer
    x = 26,921.14

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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.