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Finding the Fourth Proportional to 83,535.86, 115,269.15 and 53,338.86

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Solution

The fourth proportional to 83,535.86, 115,269.15 and 53,338.86 is: 73,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,535.86 : 115,269.15 = 53,338.86 : x
  2. Step 2: Convert to fraction form
    83,535.86/115,269.15 = 53,338.86/x
  3. Step 3: Cross multiply
    83,535.86x = 115,269.15 × 53,338.86
  4. Step 4: Simplify right side
    83,535.86x = 6,148,325,054.17
  5. Step 5: Solve for x
    x = 6,148,325,054.17/83,535.86
  6. Step 6: Final answer
    x = 73,601.03

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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.