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Finding the Fourth Proportional to 57,480.42, 86,220.67 and 15,927.42

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Solution

The fourth proportional to 57,480.42, 86,220.67 and 15,927.42 is: 23,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.42 : 86,220.67 = 15,927.42 : x
  2. Step 2: Convert to fraction form
    57,480.42/86,220.67 = 15,927.42/x
  3. Step 3: Cross multiply
    57,480.42x = 86,220.67 × 15,927.42
  4. Step 4: Simplify right side
    57,480.42x = 1,373,272,823.77
  5. Step 5: Solve for x
    x = 1,373,272,823.77/57,480.42
  6. Step 6: Final answer
    x = 23,891.14

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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.