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Finding the Fourth Proportional to 53,394.91, 80,237.86 and 28,452.78

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Solution

The fourth proportional to 53,394.91, 80,237.86 and 28,452.78 is: 42,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,394.91 : 80,237.86 = 28,452.78 : x
  2. Step 2: Convert to fraction form
    53,394.91/80,237.86 = 28,452.78/x
  3. Step 3: Cross multiply
    53,394.91x = 80,237.86 × 28,452.78
  4. Step 4: Simplify right side
    53,394.91x = 2,282,990,178.25
  5. Step 5: Solve for x
    x = 2,282,990,178.25/53,394.91
  6. Step 6: Final answer
    x = 42,756.70

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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.