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Finding the Fourth Proportional to 53,114.54, 79,685.69 and 19,834.88

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Solution

The fourth proportional to 53,114.54, 79,685.69 and 19,834.88 is: 29,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,114.54 : 79,685.69 = 19,834.88 : x
  2. Step 2: Convert to fraction form
    53,114.54/79,685.69 = 19,834.88/x
  3. Step 3: Cross multiply
    53,114.54x = 79,685.69 × 19,834.88
  4. Step 4: Simplify right side
    53,114.54x = 1,580,555,601.26
  5. Step 5: Solve for x
    x = 1,580,555,601.26/53,114.54
  6. Step 6: Final answer
    x = 29,757.50

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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.