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Finding the Fourth Proportional to 14,301.60, 19,736.17 and 8,712.60

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Solution

The fourth proportional to 14,301.60, 19,736.17 and 8,712.60 is: 12,023.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.60 : 19,736.17 = 8,712.60 : x
  2. Step 2: Convert to fraction form
    14,301.60/19,736.17 = 8,712.60/x
  3. Step 3: Cross multiply
    14,301.60x = 19,736.17 × 8,712.60
  4. Step 4: Simplify right side
    14,301.60x = 171,953,354.74
  5. Step 5: Solve for x
    x = 171,953,354.74/14,301.60
  6. Step 6: Final answer
    x = 12,023.36

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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.