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Finding the Fourth Proportional to 57,341.82, 79,129.02 and 31,849.84

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Solution

The fourth proportional to 57,341.82, 79,129.02 and 31,849.84 is: 43,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,341.82 : 79,129.02 = 31,849.84 : x
  2. Step 2: Convert to fraction form
    57,341.82/79,129.02 = 31,849.84/x
  3. Step 3: Cross multiply
    57,341.82x = 79,129.02 × 31,849.84
  4. Step 4: Simplify right side
    57,341.82x = 2,520,246,071.46
  5. Step 5: Solve for x
    x = 2,520,246,071.46/57,341.82
  6. Step 6: Final answer
    x = 43,951.27

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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.