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Finding the Fourth Proportional to 23,888.80, 32,963.67 and 13,131.90

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Solution

The fourth proportional to 23,888.80, 32,963.67 and 13,131.90 is: 18,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,888.80 : 32,963.67 = 13,131.90 : x
  2. Step 2: Convert to fraction form
    23,888.80/32,963.67 = 13,131.90/x
  3. Step 3: Cross multiply
    23,888.80x = 32,963.67 × 13,131.90
  4. Step 4: Simplify right side
    23,888.80x = 432,875,655.76
  5. Step 5: Solve for x
    x = 432,875,655.76/23,888.80
  6. Step 6: Final answer
    x = 18,120.44

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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.