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Finding the Fourth Proportional to 4,875.56, 6,722.68 and 3,811.24

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Solution

The fourth proportional to 4,875.56, 6,722.68 and 3,811.24 is: 5,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.56 : 6,722.68 = 3,811.24 : x
  2. Step 2: Convert to fraction form
    4,875.56/6,722.68 = 3,811.24/x
  3. Step 3: Cross multiply
    4,875.56x = 6,722.68 × 3,811.24
  4. Step 4: Simplify right side
    4,875.56x = 25,621,746.92
  5. Step 5: Solve for x
    x = 25,621,746.92/4,875.56
  6. Step 6: Final answer
    x = 5,255.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.