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Finding the Fourth Proportional to 25,891.99, 35,742.97 and 19,521.16

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Solution

The fourth proportional to 25,891.99, 35,742.97 and 19,521.16 is: 26,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.99 : 35,742.97 = 19,521.16 : x
  2. Step 2: Convert to fraction form
    25,891.99/35,742.97 = 19,521.16/x
  3. Step 3: Cross multiply
    25,891.99x = 35,742.97 × 19,521.16
  4. Step 4: Simplify right side
    25,891.99x = 697,744,236.25
  5. Step 5: Solve for x
    x = 697,744,236.25/25,891.99
  6. Step 6: Final answer
    x = 26,948.27

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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.