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Finding the Fourth Proportional to 64,496.20, 96,744.30 and 17,111.20

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Solution

The fourth proportional to 64,496.20, 96,744.30 and 17,111.20 is: 25,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,496.20 : 96,744.30 = 17,111.20 : x
  2. Step 2: Convert to fraction form
    64,496.20/96,744.30 = 17,111.20/x
  3. Step 3: Cross multiply
    64,496.20x = 96,744.30 × 17,111.20
  4. Step 4: Simplify right side
    64,496.20x = 1,655,411,066.16
  5. Step 5: Solve for x
    x = 1,655,411,066.16/64,496.20
  6. Step 6: Final answer
    x = 25,666.80

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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.