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Finding the Fourth Proportional to 57,682.40, 86,523.60 and 51,461.60

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Solution

The fourth proportional to 57,682.40, 86,523.60 and 51,461.60 is: 77,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,682.40 : 86,523.60 = 51,461.60 : x
  2. Step 2: Convert to fraction form
    57,682.40/86,523.60 = 51,461.60/x
  3. Step 3: Cross multiply
    57,682.40x = 86,523.60 × 51,461.60
  4. Step 4: Simplify right side
    57,682.40x = 4,452,642,893.76
  5. Step 5: Solve for x
    x = 4,452,642,893.76/57,682.40
  6. Step 6: Final answer
    x = 77,192.40

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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.