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Finding the Fourth Proportional to 57,681.36, 79,555.50 and 36,452.88

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Solution

The fourth proportional to 57,681.36, 79,555.50 and 36,452.88 is: 50,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,681.36 : 79,555.50 = 36,452.88 : x
  2. Step 2: Convert to fraction form
    57,681.36/79,555.50 = 36,452.88/x
  3. Step 3: Cross multiply
    57,681.36x = 79,555.50 × 36,452.88
  4. Step 4: Simplify right side
    57,681.36x = 2,900,027,094.84
  5. Step 5: Solve for x
    x = 2,900,027,094.84/57,681.36
  6. Step 6: Final answer
    x = 50,276.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.