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Finding the Fourth Proportional to 17,282.79, 25,924.02 and 7,920.16

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Solution

The fourth proportional to 17,282.79, 25,924.02 and 7,920.16 is: 11,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,282.79 : 25,924.02 = 7,920.16 : x
  2. Step 2: Convert to fraction form
    17,282.79/25,924.02 = 7,920.16/x
  3. Step 3: Cross multiply
    17,282.79x = 25,924.02 × 7,920.16
  4. Step 4: Simplify right side
    17,282.79x = 205,322,386.24
  5. Step 5: Solve for x
    x = 205,322,386.24/17,282.79
  6. Step 6: Final answer
    x = 11,880.16

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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.