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Finding the Fourth Proportional to 52,613.54, 72,605.77 and 28,739.60

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Solution

The fourth proportional to 52,613.54, 72,605.77 and 28,739.60 is: 39,660.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,613.54 : 72,605.77 = 28,739.60 : x
  2. Step 2: Convert to fraction form
    52,613.54/72,605.77 = 28,739.60/x
  3. Step 3: Cross multiply
    52,613.54x = 72,605.77 × 28,739.60
  4. Step 4: Simplify right side
    52,613.54x = 2,086,660,352.61
  5. Step 5: Solve for x
    x = 2,086,660,352.61/52,613.54
  6. Step 6: Final answer
    x = 39,660.14

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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.