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Finding the Fourth Proportional to 57,660.08, 79,570.76 and 31,164.08

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Solution

The fourth proportional to 57,660.08, 79,570.76 and 31,164.08 is: 43,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,660.08 : 79,570.76 = 31,164.08 : x
  2. Step 2: Convert to fraction form
    57,660.08/79,570.76 = 31,164.08/x
  3. Step 3: Cross multiply
    57,660.08x = 79,570.76 × 31,164.08
  4. Step 4: Simplify right side
    57,660.08x = 2,479,749,530.30
  5. Step 5: Solve for x
    x = 2,479,749,530.30/57,660.08
  6. Step 6: Final answer
    x = 43,006.35

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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.