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Finding the Fourth Proportional to 18,132.92, 25,023.90 and 11,762.13

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Solution

The fourth proportional to 18,132.92, 25,023.90 and 11,762.13 is: 16,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.92 : 25,023.90 = 11,762.13 : x
  2. Step 2: Convert to fraction form
    18,132.92/25,023.90 = 11,762.13/x
  3. Step 3: Cross multiply
    18,132.92x = 25,023.90 × 11,762.13
  4. Step 4: Simplify right side
    18,132.92x = 294,334,364.91
  5. Step 5: Solve for x
    x = 294,334,364.91/18,132.92
  6. Step 6: Final answer
    x = 16,232.04

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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.