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Finding the Fourth Proportional to 57,800.80, 79,764.62 and 40,597.34

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Solution

The fourth proportional to 57,800.80, 79,764.62 and 40,597.34 is: 56,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.80 : 79,764.62 = 40,597.34 : x
  2. Step 2: Convert to fraction form
    57,800.80/79,764.62 = 40,597.34/x
  3. Step 3: Cross multiply
    57,800.80x = 79,764.62 × 40,597.34
  4. Step 4: Simplify right side
    57,800.80x = 3,238,231,398.11
  5. Step 5: Solve for x
    x = 3,238,231,398.11/57,800.80
  6. Step 6: Final answer
    x = 56,023.99

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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.