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Finding the Fourth Proportional to 56,571.80, 84,836.10 and 17,115.80

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Solution

The fourth proportional to 56,571.80, 84,836.10 and 17,115.80 is: 25,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.80 : 84,836.10 = 17,115.80 : x
  2. Step 2: Convert to fraction form
    56,571.80/84,836.10 = 17,115.80/x
  3. Step 3: Cross multiply
    56,571.80x = 84,836.10 × 17,115.80
  4. Step 4: Simplify right side
    56,571.80x = 1,452,037,720.38
  5. Step 5: Solve for x
    x = 1,452,037,720.38/56,571.80
  6. Step 6: Final answer
    x = 25,667.16

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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.