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Finding the Fourth Proportional to 57,611.36, 79,518.48 and 37,518.32

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Solution

The fourth proportional to 57,611.36, 79,518.48 and 37,518.32 is: 51,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,611.36 : 79,518.48 = 37,518.32 : x
  2. Step 2: Convert to fraction form
    57,611.36/79,518.48 = 37,518.32/x
  3. Step 3: Cross multiply
    57,611.36x = 79,518.48 × 37,518.32
  4. Step 4: Simplify right side
    57,611.36x = 2,983,399,778.55
  5. Step 5: Solve for x
    x = 2,983,399,778.55/57,611.36
  6. Step 6: Final answer
    x = 51,784.92

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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.