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Finding the Fourth Proportional to 18,672.43, 25,762.44 and 11,114.95

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Solution

The fourth proportional to 18,672.43, 25,762.44 and 11,114.95 is: 15,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.43 : 25,762.44 = 11,114.95 : x
  2. Step 2: Convert to fraction form
    18,672.43/25,762.44 = 11,114.95/x
  3. Step 3: Cross multiply
    18,672.43x = 25,762.44 × 11,114.95
  4. Step 4: Simplify right side
    18,672.43x = 286,348,232.48
  5. Step 5: Solve for x
    x = 286,348,232.48/18,672.43
  6. Step 6: Final answer
    x = 15,335.35

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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.