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Finding the Fourth Proportional to 64,428.62, 96,644.75 and 17,681.49

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Solution

The fourth proportional to 64,428.62, 96,644.75 and 17,681.49 is: 26,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,428.62 : 96,644.75 = 17,681.49 : x
  2. Step 2: Convert to fraction form
    64,428.62/96,644.75 = 17,681.49/x
  3. Step 3: Cross multiply
    64,428.62x = 96,644.75 × 17,681.49
  4. Step 4: Simplify right side
    64,428.62x = 1,708,823,092.27
  5. Step 5: Solve for x
    x = 1,708,823,092.27/64,428.62
  6. Step 6: Final answer
    x = 26,522.74

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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.