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Finding the Fourth Proportional to 8,674.74, 13,012.11 and 2,100.93

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Solution

The fourth proportional to 8,674.74, 13,012.11 and 2,100.93 is: 3,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.74 : 13,012.11 = 2,100.93 : x
  2. Step 2: Convert to fraction form
    8,674.74/13,012.11 = 2,100.93/x
  3. Step 3: Cross multiply
    8,674.74x = 13,012.11 × 2,100.93
  4. Step 4: Simplify right side
    8,674.74x = 27,337,532.26
  5. Step 5: Solve for x
    x = 27,337,532.26/8,674.74
  6. Step 6: Final answer
    x = 3,151.40

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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.