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Finding the Fourth Proportional to 56,563.78, 84,846.75 and 17,120.74

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Solution

The fourth proportional to 56,563.78, 84,846.75 and 17,120.74 is: 25,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,563.78 : 84,846.75 = 17,120.74 : x
  2. Step 2: Convert to fraction form
    56,563.78/84,846.75 = 17,120.74/x
  3. Step 3: Cross multiply
    56,563.78x = 84,846.75 × 17,120.74
  4. Step 4: Simplify right side
    56,563.78x = 1,452,639,146.60
  5. Step 5: Solve for x
    x = 1,452,639,146.60/56,563.78
  6. Step 6: Final answer
    x = 25,681.44

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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.