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Finding the Fourth Proportional to 25,690.87, 35,450.54 and 14,512.87

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Solution

The fourth proportional to 25,690.87, 35,450.54 and 14,512.87 is: 20,026.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.87 : 35,450.54 = 14,512.87 : x
  2. Step 2: Convert to fraction form
    25,690.87/35,450.54 = 14,512.87/x
  3. Step 3: Cross multiply
    25,690.87x = 35,450.54 × 14,512.87
  4. Step 4: Simplify right side
    25,690.87x = 514,488,901.20
  5. Step 5: Solve for x
    x = 514,488,901.20/25,690.87
  6. Step 6: Final answer
    x = 20,026.14

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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.