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Finding the Fourth Proportional to 25,983.63, 38,965.77 and 9,339.12

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Solution

The fourth proportional to 25,983.63, 38,965.77 and 9,339.12 is: 14,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.63 : 38,965.77 = 9,339.12 : x
  2. Step 2: Convert to fraction form
    25,983.63/38,965.77 = 9,339.12/x
  3. Step 3: Cross multiply
    25,983.63x = 38,965.77 × 9,339.12
  4. Step 4: Simplify right side
    25,983.63x = 363,906,001.92
  5. Step 5: Solve for x
    x = 363,906,001.92/25,983.63
  6. Step 6: Final answer
    x = 14,005.20

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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.