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Finding the Fourth Proportional to 10,707.60, 16,056.60 and 4,131.60

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Solution

The fourth proportional to 10,707.60, 16,056.60 and 4,131.60 is: 6,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,707.60 : 16,056.60 = 4,131.60 : x
  2. Step 2: Convert to fraction form
    10,707.60/16,056.60 = 4,131.60/x
  3. Step 3: Cross multiply
    10,707.60x = 16,056.60 × 4,131.60
  4. Step 4: Simplify right side
    10,707.60x = 66,339,448.56
  5. Step 5: Solve for x
    x = 66,339,448.56/10,707.60
  6. Step 6: Final answer
    x = 6,195.55

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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.