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Finding the Fourth Proportional to 17,290.30, 25,931.36 and 7,924.48

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Solution

The fourth proportional to 17,290.30, 25,931.36 and 7,924.48 is: 11,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,290.30 : 25,931.36 = 7,924.48 : x
  2. Step 2: Convert to fraction form
    17,290.30/25,931.36 = 7,924.48/x
  3. Step 3: Cross multiply
    17,290.30x = 25,931.36 × 7,924.48
  4. Step 4: Simplify right side
    17,290.30x = 205,492,504.07
  5. Step 5: Solve for x
    x = 205,492,504.07/17,290.30
  6. Step 6: Final answer
    x = 11,884.84

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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.