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Finding the Fourth Proportional to 39,894.51, 55,038.99 and 22,892.61

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Solution

The fourth proportional to 39,894.51, 55,038.99 and 22,892.61 is: 31,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.51 : 55,038.99 = 22,892.61 : x
  2. Step 2: Convert to fraction form
    39,894.51/55,038.99 = 22,892.61/x
  3. Step 3: Cross multiply
    39,894.51x = 55,038.99 × 22,892.61
  4. Step 4: Simplify right side
    39,894.51x = 1,259,986,132.86
  5. Step 5: Solve for x
    x = 1,259,986,132.86/39,894.51
  6. Step 6: Final answer
    x = 31,582.95

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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.