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Finding the Fourth Proportional to 64,572.48, 96,860.64 and 17,825.76

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Solution

The fourth proportional to 64,572.48, 96,860.64 and 17,825.76 is: 26,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,572.48 : 96,860.64 = 17,825.76 : x
  2. Step 2: Convert to fraction form
    64,572.48/96,860.64 = 17,825.76/x
  3. Step 3: Cross multiply
    64,572.48x = 96,860.64 × 17,825.76
  4. Step 4: Simplify right side
    64,572.48x = 1,726,614,522.09
  5. Step 5: Solve for x
    x = 1,726,614,522.09/64,572.48
  6. Step 6: Final answer
    x = 26,739.17

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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.