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Finding the Fourth Proportional to 17,570.40, 26,355.60 and 15,957.60

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Solution

The fourth proportional to 17,570.40, 26,355.60 and 15,957.60 is: 23,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,570.40 : 26,355.60 = 15,957.60 : x
  2. Step 2: Convert to fraction form
    17,570.40/26,355.60 = 15,957.60/x
  3. Step 3: Cross multiply
    17,570.40x = 26,355.60 × 15,957.60
  4. Step 4: Simplify right side
    17,570.40x = 420,572,122.56
  5. Step 5: Solve for x
    x = 420,572,122.56/17,570.40
  6. Step 6: Final answer
    x = 23,936.40

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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.