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Finding the Fourth Proportional to 84,666.34, 126,983.33 and 42,534.73

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Solution

The fourth proportional to 84,666.34, 126,983.33 and 42,534.73 is: 63,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,666.34 : 126,983.33 = 42,534.73 : x
  2. Step 2: Convert to fraction form
    84,666.34/126,983.33 = 42,534.73/x
  3. Step 3: Cross multiply
    84,666.34x = 126,983.33 × 42,534.73
  4. Step 4: Simplify right side
    84,666.34x = 5,401,201,021.13
  5. Step 5: Solve for x
    x = 5,401,201,021.13/84,666.34
  6. Step 6: Final answer
    x = 63,793.96

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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.