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Finding the Fourth Proportional to 17,825.40, 26,759.70 and 17,695.80

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Solution

The fourth proportional to 17,825.40, 26,759.70 and 17,695.80 is: 26,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,825.40 : 26,759.70 = 17,695.80 : x
  2. Step 2: Convert to fraction form
    17,825.40/26,759.70 = 17,695.80/x
  3. Step 3: Cross multiply
    17,825.40x = 26,759.70 × 17,695.80
  4. Step 4: Simplify right side
    17,825.40x = 473,534,299.26
  5. Step 5: Solve for x
    x = 473,534,299.26/17,825.40
  6. Step 6: Final answer
    x = 26,565.14

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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.