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Finding the Fourth Proportional to 19,626.60, 29,439.90 and 17,476.20

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Solution

The fourth proportional to 19,626.60, 29,439.90 and 17,476.20 is: 26,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,626.60 : 29,439.90 = 17,476.20 : x
  2. Step 2: Convert to fraction form
    19,626.60/29,439.90 = 17,476.20/x
  3. Step 3: Cross multiply
    19,626.60x = 29,439.90 × 17,476.20
  4. Step 4: Simplify right side
    19,626.60x = 514,497,580.38
  5. Step 5: Solve for x
    x = 514,497,580.38/19,626.60
  6. Step 6: Final answer
    x = 26,214.30

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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.