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Finding the Fourth Proportional to 57,595.56, 86,391.72 and 31,465.78

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Solution

The fourth proportional to 57,595.56, 86,391.72 and 31,465.78 is: 47,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,595.56 : 86,391.72 = 31,465.78 : x
  2. Step 2: Convert to fraction form
    57,595.56/86,391.72 = 31,465.78/x
  3. Step 3: Cross multiply
    57,595.56x = 86,391.72 × 31,465.78
  4. Step 4: Simplify right side
    57,595.56x = 2,718,382,855.34
  5. Step 5: Solve for x
    x = 2,718,382,855.34/57,595.56
  6. Step 6: Final answer
    x = 47,197.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.