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Finding the Fourth Proportional to 56,984.80, 85,477.20 and 41,238.40

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Solution

The fourth proportional to 56,984.80, 85,477.20 and 41,238.40 is: 61,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,984.80 : 85,477.20 = 41,238.40 : x
  2. Step 2: Convert to fraction form
    56,984.80/85,477.20 = 41,238.40/x
  3. Step 3: Cross multiply
    56,984.80x = 85,477.20 × 41,238.40
  4. Step 4: Simplify right side
    56,984.80x = 3,524,942,964.48
  5. Step 5: Solve for x
    x = 3,524,942,964.48/56,984.80
  6. Step 6: Final answer
    x = 61,857.60

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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.