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Finding the Fourth Proportional to 83,899.88, 115,755.76 and 47,595.34

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Solution

The fourth proportional to 83,899.88, 115,755.76 and 47,595.34 is: 65,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,899.88 : 115,755.76 = 47,595.34 : x
  2. Step 2: Convert to fraction form
    83,899.88/115,755.76 = 47,595.34/x
  3. Step 3: Cross multiply
    83,899.88x = 115,755.76 × 47,595.34
  4. Step 4: Simplify right side
    83,899.88x = 5,509,434,754.16
  5. Step 5: Solve for x
    x = 5,509,434,754.16/83,899.88
  6. Step 6: Final answer
    x = 65,666.78

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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.