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Finding the Fourth Proportional to 14,301.44, 19,735.92 and 8,712.44

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Solution

The fourth proportional to 14,301.44, 19,735.92 and 8,712.44 is: 12,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.44 : 19,735.92 = 8,712.44 : x
  2. Step 2: Convert to fraction form
    14,301.44/19,735.92 = 8,712.44/x
  3. Step 3: Cross multiply
    14,301.44x = 19,735.92 × 8,712.44
  4. Step 4: Simplify right side
    14,301.44x = 171,948,018.84
  5. Step 5: Solve for x
    x = 171,948,018.84/14,301.44
  6. Step 6: Final answer
    x = 12,023.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.