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Finding the Fourth Proportional to 17,154.54, 25,719.62 and 6,615.63

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Solution

The fourth proportional to 17,154.54, 25,719.62 and 6,615.63 is: 9,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,154.54 : 25,719.62 = 6,615.63 : x
  2. Step 2: Convert to fraction form
    17,154.54/25,719.62 = 6,615.63/x
  3. Step 3: Cross multiply
    17,154.54x = 25,719.62 × 6,615.63
  4. Step 4: Simplify right side
    17,154.54x = 170,151,456.58
  5. Step 5: Solve for x
    x = 170,151,456.58/17,154.54
  6. Step 6: Final answer
    x = 9,918.74

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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.