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Finding the Fourth Proportional to 19,192.41, 28,784.30 and 6,880.41

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Solution

The fourth proportional to 19,192.41, 28,784.30 and 6,880.41 is: 10,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.41 : 28,784.30 = 6,880.41 : x
  2. Step 2: Convert to fraction form
    19,192.41/28,784.30 = 6,880.41/x
  3. Step 3: Cross multiply
    19,192.41x = 28,784.30 × 6,880.41
  4. Step 4: Simplify right side
    19,192.41x = 198,047,751.16
  5. Step 5: Solve for x
    x = 198,047,751.16/19,192.41
  6. Step 6: Final answer
    x = 10,319.07

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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.