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Finding the Fourth Proportional to 57,987.95, 79,989.67 and 32,832.59

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Solution

The fourth proportional to 57,987.95, 79,989.67 and 32,832.59 is: 45,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,987.95 : 79,989.67 = 32,832.59 : x
  2. Step 2: Convert to fraction form
    57,987.95/79,989.67 = 32,832.59/x
  3. Step 3: Cross multiply
    57,987.95x = 79,989.67 × 32,832.59
  4. Step 4: Simplify right side
    57,987.95x = 2,626,268,039.35
  5. Step 5: Solve for x
    x = 2,626,268,039.35/57,987.95
  6. Step 6: Final answer
    x = 45,289.89

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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.