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Finding the Fourth Proportional to 19,251.76, 28,878.42 and 6,103.84

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Solution

The fourth proportional to 19,251.76, 28,878.42 and 6,103.84 is: 9,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.76 : 28,878.42 = 6,103.84 : x
  2. Step 2: Convert to fraction form
    19,251.76/28,878.42 = 6,103.84/x
  3. Step 3: Cross multiply
    19,251.76x = 28,878.42 × 6,103.84
  4. Step 4: Simplify right side
    19,251.76x = 176,269,255.13
  5. Step 5: Solve for x
    x = 176,269,255.13/19,251.76
  6. Step 6: Final answer
    x = 9,156.01

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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.