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Finding the Fourth Proportional to 19,015.30, 28,522.95 and 16,423.30

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Solution

The fourth proportional to 19,015.30, 28,522.95 and 16,423.30 is: 24,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.30 : 28,522.95 = 16,423.30 : x
  2. Step 2: Convert to fraction form
    19,015.30/28,522.95 = 16,423.30/x
  3. Step 3: Cross multiply
    19,015.30x = 28,522.95 × 16,423.30
  4. Step 4: Simplify right side
    19,015.30x = 468,440,964.74
  5. Step 5: Solve for x
    x = 468,440,964.74/19,015.30
  6. Step 6: Final answer
    x = 24,634.95

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Similar ratio
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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.