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Finding the Fourth Proportional to 19,488.70, 29,233.05 and 14,880.70

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Solution

The fourth proportional to 19,488.70, 29,233.05 and 14,880.70 is: 22,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.70 : 29,233.05 = 14,880.70 : x
  2. Step 2: Convert to fraction form
    19,488.70/29,233.05 = 14,880.70/x
  3. Step 3: Cross multiply
    19,488.70x = 29,233.05 × 14,880.70
  4. Step 4: Simplify right side
    19,488.70x = 435,008,247.14
  5. Step 5: Solve for x
    x = 435,008,247.14/19,488.70
  6. Step 6: Final answer
    x = 22,321.05

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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.