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Finding the Fourth Proportional to 17,012.60, 25,521.96 and 7,011.78

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Solution

The fourth proportional to 17,012.60, 25,521.96 and 7,011.78 is: 10,518.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,012.60 : 25,521.96 = 7,011.78 : x
  2. Step 2: Convert to fraction form
    17,012.60/25,521.96 = 7,011.78/x
  3. Step 3: Cross multiply
    17,012.60x = 25,521.96 × 7,011.78
  4. Step 4: Simplify right side
    17,012.60x = 178,954,368.69
  5. Step 5: Solve for x
    x = 178,954,368.69/17,012.60
  6. Step 6: Final answer
    x = 10,518.93

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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.