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Finding the Fourth Proportional to 64,965.70, 97,448.54 and 15,717.70

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Solution

The fourth proportional to 64,965.70, 97,448.54 and 15,717.70 is: 23,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.70 : 97,448.54 = 15,717.70 : x
  2. Step 2: Convert to fraction form
    64,965.70/97,448.54 = 15,717.70/x
  3. Step 3: Cross multiply
    64,965.70x = 97,448.54 × 15,717.70
  4. Step 4: Simplify right side
    64,965.70x = 1,531,666,351.33
  5. Step 5: Solve for x
    x = 1,531,666,351.33/64,965.70
  6. Step 6: Final answer
    x = 23,576.54

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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.