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Finding the Fourth Proportional to 83,684.52, 115,485.45 and 45,958.77

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Solution

The fourth proportional to 83,684.52, 115,485.45 and 45,958.77 is: 63,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,684.52 : 115,485.45 = 45,958.77 : x
  2. Step 2: Convert to fraction form
    83,684.52/115,485.45 = 45,958.77/x
  3. Step 3: Cross multiply
    83,684.52x = 115,485.45 × 45,958.77
  4. Step 4: Simplify right side
    83,684.52x = 5,307,569,234.90
  5. Step 5: Solve for x
    x = 5,307,569,234.90/83,684.52
  6. Step 6: Final answer
    x = 63,423.55

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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.