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Finding the Fourth Proportional to 17,130.70, 25,679.85 and 10,116.10

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Solution

The fourth proportional to 17,130.70, 25,679.85 and 10,116.10 is: 15,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.70 : 25,679.85 = 10,116.10 : x
  2. Step 2: Convert to fraction form
    17,130.70/25,679.85 = 10,116.10/x
  3. Step 3: Cross multiply
    17,130.70x = 25,679.85 × 10,116.10
  4. Step 4: Simplify right side
    17,130.70x = 259,779,930.59
  5. Step 5: Solve for x
    x = 259,779,930.59/17,130.70
  6. Step 6: Final answer
    x = 15,164.58

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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.