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Finding the Fourth Proportional to 19,232.80, 28,849.20 and 18,941.20

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Solution

The fourth proportional to 19,232.80, 28,849.20 and 18,941.20 is: 28,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,232.80 : 28,849.20 = 18,941.20 : x
  2. Step 2: Convert to fraction form
    19,232.80/28,849.20 = 18,941.20/x
  3. Step 3: Cross multiply
    19,232.80x = 28,849.20 × 18,941.20
  4. Step 4: Simplify right side
    19,232.80x = 546,438,467.04
  5. Step 5: Solve for x
    x = 546,438,467.04/19,232.80
  6. Step 6: Final answer
    x = 28,411.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.