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Finding the Fourth Proportional to 55,540.94, 76,566.77 and 39,597.71

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Solution

The fourth proportional to 55,540.94, 76,566.77 and 39,597.71 is: 54,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,540.94 : 76,566.77 = 39,597.71 : x
  2. Step 2: Convert to fraction form
    55,540.94/76,566.77 = 39,597.71/x
  3. Step 3: Cross multiply
    55,540.94x = 76,566.77 × 39,597.71
  4. Step 4: Simplify right side
    55,540.94x = 3,031,868,173.27
  5. Step 5: Solve for x
    x = 3,031,868,173.27/55,540.94
  6. Step 6: Final answer
    x = 54,587.99

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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.