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Finding the Fourth Proportional to 23,471.54, 32,389.65 and 12,860.94

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Solution

The fourth proportional to 23,471.54, 32,389.65 and 12,860.94 is: 17,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,471.54 : 32,389.65 = 12,860.94 : x
  2. Step 2: Convert to fraction form
    23,471.54/32,389.65 = 12,860.94/x
  3. Step 3: Cross multiply
    23,471.54x = 32,389.65 × 12,860.94
  4. Step 4: Simplify right side
    23,471.54x = 416,561,345.27
  5. Step 5: Solve for x
    x = 416,561,345.27/23,471.54
  6. Step 6: Final answer
    x = 17,747.51

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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.