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Finding the Fourth Proportional to 6,220.55, 8,581.58 and 4,203.32

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Solution

The fourth proportional to 6,220.55, 8,581.58 and 4,203.32 is: 5,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.55 : 8,581.58 = 4,203.32 : x
  2. Step 2: Convert to fraction form
    6,220.55/8,581.58 = 4,203.32/x
  3. Step 3: Cross multiply
    6,220.55x = 8,581.58 × 4,203.32
  4. Step 4: Simplify right side
    6,220.55x = 36,071,062.92
  5. Step 5: Solve for x
    x = 36,071,062.92/6,220.55
  6. Step 6: Final answer
    x = 5,798.70

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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.