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Finding the Fourth Proportional to 57,421.94, 79,223.99 and 34,753.68

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Solution

The fourth proportional to 57,421.94, 79,223.99 and 34,753.68 is: 47,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.94 : 79,223.99 = 34,753.68 : x
  2. Step 2: Convert to fraction form
    57,421.94/79,223.99 = 34,753.68/x
  3. Step 3: Cross multiply
    57,421.94x = 79,223.99 × 34,753.68
  4. Step 4: Simplify right side
    57,421.94x = 2,753,325,023.01
  5. Step 5: Solve for x
    x = 2,753,325,023.01/57,421.94
  6. Step 6: Final answer
    x = 47,949.01

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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.