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Finding the Fourth Proportional to 17,088.60, 25,632.90 and 15,776.40

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Solution

The fourth proportional to 17,088.60, 25,632.90 and 15,776.40 is: 23,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,088.60 : 25,632.90 = 15,776.40 : x
  2. Step 2: Convert to fraction form
    17,088.60/25,632.90 = 15,776.40/x
  3. Step 3: Cross multiply
    17,088.60x = 25,632.90 × 15,776.40
  4. Step 4: Simplify right side
    17,088.60x = 404,394,883.56
  5. Step 5: Solve for x
    x = 404,394,883.56/17,088.60
  6. Step 6: Final answer
    x = 23,664.60

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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.