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Finding the Fourth Proportional to 17,155.90, 25,735.05 and 7,294.06

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Solution

The fourth proportional to 17,155.90, 25,735.05 and 7,294.06 is: 10,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155.90 : 25,735.05 = 7,294.06 : x
  2. Step 2: Convert to fraction form
    17,155.90/25,735.05 = 7,294.06/x
  3. Step 3: Cross multiply
    17,155.90x = 25,735.05 × 7,294.06
  4. Step 4: Simplify right side
    17,155.90x = 187,712,998.80
  5. Step 5: Solve for x
    x = 187,712,998.80/17,155.90
  6. Step 6: Final answer
    x = 10,941.60

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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.