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Finding the Fourth Proportional to 17,570.80, 26,356.20 and 15,929.20

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Solution

The fourth proportional to 17,570.80, 26,356.20 and 15,929.20 is: 23,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,570.80 : 26,356.20 = 15,929.20 : x
  2. Step 2: Convert to fraction form
    17,570.80/26,356.20 = 15,929.20/x
  3. Step 3: Cross multiply
    17,570.80x = 26,356.20 × 15,929.20
  4. Step 4: Simplify right side
    17,570.80x = 419,833,181.04
  5. Step 5: Solve for x
    x = 419,833,181.04/17,570.80
  6. Step 6: Final answer
    x = 23,893.80

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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.