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Finding the Fourth Proportional to 23,891.81, 32,967.81 and 13,134.90

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Solution

The fourth proportional to 23,891.81, 32,967.81 and 13,134.90 is: 18,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,891.81 : 32,967.81 = 13,134.90 : x
  2. Step 2: Convert to fraction form
    23,891.81/32,967.81 = 13,134.90/x
  3. Step 3: Cross multiply
    23,891.81x = 32,967.81 × 13,134.90
  4. Step 4: Simplify right side
    23,891.81x = 433,028,887.57
  5. Step 5: Solve for x
    x = 433,028,887.57/23,891.81
  6. Step 6: Final answer
    x = 18,124.58

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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.