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Finding the Fourth Proportional to 64,687.44, 97,031.16 and 17,940.32

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Solution

The fourth proportional to 64,687.44, 97,031.16 and 17,940.32 is: 26,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.44 : 97,031.16 = 17,940.32 : x
  2. Step 2: Convert to fraction form
    64,687.44/97,031.16 = 17,940.32/x
  3. Step 3: Cross multiply
    64,687.44x = 97,031.16 × 17,940.32
  4. Step 4: Simplify right side
    64,687.44x = 1,740,769,485.51
  5. Step 5: Solve for x
    x = 1,740,769,485.51/64,687.44
  6. Step 6: Final answer
    x = 26,910.47

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1.5x scale

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.