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Finding the Fourth Proportional to 5,224.92, 7,210.62 and 3,129

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Solution

The fourth proportional to 5,224.92, 7,210.62 and 3,129 is: 4,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224.92 : 7,210.62 = 3,129 : x
  2. Step 2: Convert to fraction form
    5,224.92/7,210.62 = 3,129/x
  3. Step 3: Cross multiply
    5,224.92x = 7,210.62 × 3,129
  4. Step 4: Simplify right side
    5,224.92x = 22,562,029.98
  5. Step 5: Solve for x
    x = 22,562,029.98/5,224.92
  6. Step 6: Final answer
    x = 4,318.16

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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.