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Finding the Fourth Proportional to 28,662.48, 39,562.48 and 17,332

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Solution

The fourth proportional to 28,662.48, 39,562.48 and 17,332 is: 23,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.48 : 39,562.48 = 17,332 : x
  2. Step 2: Convert to fraction form
    28,662.48/39,562.48 = 17,332/x
  3. Step 3: Cross multiply
    28,662.48x = 39,562.48 × 17,332
  4. Step 4: Simplify right side
    28,662.48x = 685,696,903.36
  5. Step 5: Solve for x
    x = 685,696,903.36/28,662.48
  6. Step 6: Final answer
    x = 23,923.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.