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Finding the Fourth Proportional to 25,696.92, 35,461.12 and 15,625.68

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Solution

The fourth proportional to 25,696.92, 35,461.12 and 15,625.68 is: 21,563.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,696.92 : 35,461.12 = 15,625.68 : x
  2. Step 2: Convert to fraction form
    25,696.92/35,461.12 = 15,625.68/x
  3. Step 3: Cross multiply
    25,696.92x = 35,461.12 × 15,625.68
  4. Step 4: Simplify right side
    25,696.92x = 554,104,113.56
  5. Step 5: Solve for x
    x = 554,104,113.56/25,696.92
  6. Step 6: Final answer
    x = 21,563.06

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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.