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Finding the Fourth Proportional to 54,241.20, 81,253.80 and 47,746.80

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Solution

The fourth proportional to 54,241.20, 81,253.80 and 47,746.80 is: 71,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,241.20 : 81,253.80 = 47,746.80 : x
  2. Step 2: Convert to fraction form
    54,241.20/81,253.80 = 47,746.80/x
  3. Step 3: Cross multiply
    54,241.20x = 81,253.80 × 47,746.80
  4. Step 4: Simplify right side
    54,241.20x = 3,879,608,937.84
  5. Step 5: Solve for x
    x = 3,879,608,937.84/54,241.20
  6. Step 6: Final answer
    x = 71,525.13

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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.