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Finding the Fourth Proportional to 19,214.40, 28,821.60 and 17,027.40

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Solution

The fourth proportional to 19,214.40, 28,821.60 and 17,027.40 is: 25,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,214.40 : 28,821.60 = 17,027.40 : x
  2. Step 2: Convert to fraction form
    19,214.40/28,821.60 = 17,027.40/x
  3. Step 3: Cross multiply
    19,214.40x = 28,821.60 × 17,027.40
  4. Step 4: Simplify right side
    19,214.40x = 490,756,911.84
  5. Step 5: Solve for x
    x = 490,756,911.84/19,214.40
  6. Step 6: Final answer
    x = 25,541.10

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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.