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Finding the Fourth Proportional to 54,169.90, 81,285.90 and 29,209.84

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Solution

The fourth proportional to 54,169.90, 81,285.90 and 29,209.84 is: 43,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,169.90 : 81,285.90 = 29,209.84 : x
  2. Step 2: Convert to fraction form
    54,169.90/81,285.90 = 29,209.84/x
  3. Step 3: Cross multiply
    54,169.90x = 81,285.90 × 29,209.84
  4. Step 4: Simplify right side
    54,169.90x = 2,374,348,133.26
  5. Step 5: Solve for x
    x = 2,374,348,133.26/54,169.90
  6. Step 6: Final answer
    x = 43,831.50

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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.